| Episode Number (Series) | Episode Number (Season) | Original Airdate | Episode Title | Notes |
|---|---|---|---|---|
| R51 | 01 | 14 Jun. 2017 | Dark Dawn | The Princess becomes a teenager, known as Dark Dawn, and she forgets about Mr. Snuggles, who turns all the teddies in the world, including Penfold's teddy bear, Bernard, evil that can help him attack the world, due to Dawn's changes as a teenager. |
| R52 | 02 | 14 Jun. 2017 | The Admirable Penfold | Penfold and Baron Von Greenback are forced to ally when they get stranded on an island. |
| R53 | 03 | 4 Sep. 2017 | Colonel Danger Mouse | When Colonel K goes on holiday, Danger Mouse steps in. However, he can't handle the paperwork, do the missions himself or control the agents. Worse, Colonel K has been kidnapped by Baron von Greenback! |
| R54 | 04 | 5 Sep. 2017 | Ernest Penfold and the Half Price Wand | Envious at Danger Mouse's ever-growing medal collection, Penfold falls under the spell of Quark's latest money-making scheme. |
| R55 | 05 | 6 Sep. 2017 | Squawkenbard Kingcluck Brunel | Professor Squawkencluck's body swap with Kingkong Brunel has dire consequences at the annual science convention. |
| R56 | 06 | 7 Sep. 2017 | Live and Let Cry | Danger Mouse leads the Danger Babies astray after he tells them a story that he, Penfold, Professor Squawkencluck and Colonel K are all villains in disguise. |
| R57 | 07 | 8 Sep. 2017 | Lost Tempers in Space | Danger Mouse and Jeopardy Mouse are on a mission in space - will they work together as a team? |
| R58 | 08 | 11 Sep. 2017 | The Toad Who Would Be King | The Baron's love for The Queen of Great Goldlandia threatens to bring Danger Mouse to his knees when the Baron becomes king and DM becomes his personal bodyguard! |
| R59 | 09 | 12 Sep. 2017 | I Believe in Danger Mouse | The cult of cats from "The Cute Shall Inherit the Earth" adopt Danger Mouse as their leader. |
| R60 | 10 | 13 Sep. 2017 | Thanksgiving Sinner | Danger Mouse and Penfold get a taste of Thanksgiving when they join Jeopardy Mouse in America. When in America with Jeopardy, they discover that Professor Ham Hands has joined Hydrant. |
| R61 | 11 | 14 Sep. 2017 | Big Trouble in Little Clowntown | Professor Squawkencluck's seriousizer is nabbed by Pompom, the fun and laughter-hating president of the clown planet of Bozoria. |
| R62 | 12 | 15 Sep. 2017 | Quantum of Rudeness | The 'ping' of a microwave causes Danger Mouse to blast a hole in the wall of Squawkencluck's laboratory. |
| R63 | 13 | 18 Sep. 2017 | A Loo to A Kill | During filming for a film adaptation of the events of "Planet of the Toilets", Colonel K and Professor Squawkencluck are zapped and turned into toilets. |
| R64 | 14 | 19 Sep, 2017 | Roll of the Mice | Ian, the Danger Fan, traps Danger Mouse and Jeopardy in an interactive board game, and forces Penfold to play for his friends' lives. |
| R65 | 15 | 20 Sep, 2017 | Gold Flinger | Danger Mouse's addiction to challenges threatens the world when Quark tricks him into transporting a ticking timebomb back to Earth. |
| R66 | 16 | 21 Sep. 2017 | There's Something About Scarlett | When Penfold scores a date with superstar Scarlett Johamster, Danger Mouse and the Professor provide conflicting advice. |
| R67 | 17 | 22 Sep. 2017 | Groundmouse Day | Penfold must repeat the same day over and over again to stop a time-altering Duckula from framing DM. |
| R68 | 18 | 25 Sep. 2017 | Dry Hard | A late night scary movie makes Penfold even extra jittery, forcing Danger Mouse to make his sidekick sit out the latest mission which is to stop the Baron from flooding the world. |
| R69 | 19 | 26 Sep. 2017 | Day of the Derek | A geeky descendant, named Derek Mullard, travels back in time to try to stop Danger Mouse from destroying the world. |
| R70 | 20 | 27 Sep. 2017 | Crumfan | Danger Mouse and Penfold arrive at the UN to scenes of quarrelling diplomats, caused by a sabotaged translation system. |
| R71 | 21 | 28 Sep. 2017 | Nero Come Home | Danger Mouse and Squawk discover the Baron's plans to brainwash the world's pets into becoming his personal army of slaves. |
| R72 | 22 | 29 Sep. 2017 | Dark Side of the Mouse | Crumhorn is back! Danger Mouse has released him by mistake! He, now, uses a ray that controls people and gets Ivana the Invisible, Megahurtz, Rocket Sloth and Baron von Greenback to help him defeat Crumhorn. But is DM starting to turn villainous in the process? |
| R73 | 23 | 31 Oct. 2017 | The Scare Mouse Project | Danger Mouse learns the meaning of fear when he meets a hair-raisingly spooky villain! |
| R74 | 24 | 15 Dec. 2017 | Yule Only Watch Twice | Whilst driving, the lights go out and the Danger Car disappears. When the lights come back on, DM and Penfold discover that they're on "The Jimmy Camel Show", which looks back at the pairs actions from the past two series, but Penfold is suspicious. |
| R75 | 25 | 17 Sep. 2018 | Twysted Sister | Professor Squawkencluck is hit by her own age-reversing balm and Danger Mouse finds he much prefers her younger, more carefree self. But things get out of hand when she gets her feathered hands on Twystymatter from the Twystyverse. |
| R76 | 26 | 18 Sep. 2018 | Grand Stressed Auto | The Mark 4 Danger Car has been jammed and so have all the other Danger vehicles, except for the good old Mark 3. While the car is thrilled to be back in action with Danger Mouse, Penfold gets the feeling it doesn't like him. |
| R77 | 27 | 19 Sep. 2018 | Clash of the Odd-esey | Arriving in Ancient Greece with King Kong Brunel's Time Machine, Danger Mouse befriends Zeus of Olympus and gains godlike powers. |
| R78 | 28 | 20 Sep. 2018 | Hen-emy of the State | Professor Squawkencluck quits the Danger Agency to work with her idol, Elon Musktrat, leaving Danger Mouse without any gadgets. |
| R79 | 29 | 21 Sep. 2018 | For your Insides Only | Danger Mouse has developed an allergy to his own heroism. Penfold is shrunk to microscopic size and injected into DM's bloodstream to find his inner coward. |
| R80 | 30 | 24 Sep. 2018 | A Fistful of Penfolds | In Penfold City, Professor Squawkencluck's secret testing ground is a western town filled with Penbots, new 'Tenfolds' are being developed to become better sidekicks than the original Penfold. |
| R81 | 31 | 25 Sep. 2018 | Daylight Savings Crime | First noisy landmarks are being targeted by an unknown villain, then daylight itself. So Colonel K. tells DM and P to team up with the Night Shift: Danger Mole and Danger Moth. |
| R82 | 32 | 26 Sep. 2018 | The Law of Beverages | When all of the world's favorite drinks are stolen, the population becomes too fatigued to act upon it. Except of course, for Danger Mouse. |
| R83 | 33 | 27 Sep. 2018 | Licence to Care | As usual, Danger Mouse has forgotten to remember Penfold's birthday. So Professor Squawkencluck sprays DM with her new experimental empathy gas to make him feel more caring to others. |
| R84 | 34 | 28 Sep. 2018 | Force of Nature | DM is forced to take a holiday owing to his obsession with gadgets. Delilah von Greenback is sent into the same woodland retreat by her father because to get over her obsession with social media. |
| R85 | 35 | 1 Oct. 2018 | No More Mr Ice Guy | Tired of losing, the Snowman gets himself a Mech suit and becomes Danger Mouse's new sidekick. Out of a job, Penfold finds work at J. Woolington Sham's Tea Room. |
| R86 | 36 | 2 Oct. 2018 | Bot Battles | Penfold has been pilfering lab material in secret to build a robot for a secret Robot Fight Club. When Danger Mouse finds out, he decides to help out and builds his own CRM-3000. |
| R87 | 37 | 3 Oct. 2018 | Rodent Recall | When DM and Penfold awake from a Holodeck simulation gone awry, they find they've been stuck inside for 3 years and are actually IT workers instead of Danger Agents. |
| R88 | 38 | 31 Oct. 2018 | A Fear to Remember | It's Halloween and everybody is being scared stiff by their greatest fears. Except for Danger Mouse, who doesn't know the meaning of the word and possibly Penfold, if he dares to take Professor Squawkencluck experimental bravery serum. |
| R89 | 39 | 17 Dec. 2018 | Melted | Dawn re-enacts her favorite movie musical, 'Melted' and Danger Mouse has to play along or the world will go under thanks to global warming. |
| R90 | 40 | 18 Feb. 2019 | We Aren't Family | The Danger agents go undercover disguised as a family to find out why the world's villains are heading to one holiday camp. When Baron Greenback shows up, the team are convinced he's up to no good, but can't find any evidence of wrongdoing. |
| R91 | 41 | 19 Feb. 2019 | Crouching Hamster, Hidden Wagon | Penfold is summoned by his Granny to help retrieve the stolen book of Farm Fu. |
| R92 | 42 | 20 Feb. 2019 | Danger-thon! | The Danger agents hold a telethon to raise funds for HQ. |
| R93 | 43 | 21 Feb. 2019 | Jam Session | A jam spillage in the professor's experiment brings a sticky surprise to life. |
| R94 | 44 | 25 Feb. 2019 | Sharp as a pin | On their way to pick up Penfold's cousin Pinfold from New Zealand at the airport, Colonel K. informs DM that Birch Badboy is vandalizing statues all over the world. |
| R95 | 45 | 26 Feb. 2019 | The Last Giraffe Warrior | Penfold achieves the highest score ever on his 'Giraffe Warriors' game and is elected to save the Giraffe Warrior planet from destruction. |
| R96 | 46 | 27 Feb. 2019 | Duplicate Mouse | Squawkencluck's new Warp Drive was designed to move Danger HQ but it creates an exact duplicate instead. And that includes replica's of everybody inside of it. |
| R97 | 47 | 28 Feb. 2019 | The Supies | It's the night of the annual Supie Awards, which are just an excuse for Danger Mouse to pick up all the prizes in between lots and lots of old clips. |
| R98 | 48 | 4 Mar. 2019 | Lost in Exaggeration | The public is losing interest in the Danger Agency, so Colonel K hires Quark to handle public relations. |
| R99 | 49 | 5 Mar. 2019 | The World is Full of Stuff | Stuff has gone missing all over the world and taken to a giant sofa shaped spaceship. Squawkencluck tries out her new Futuroid Camera which takes photos of the future. |