BBC iPlayer · To Be Determined

Submarine Jim

Children · 2026

Last aired: S1 E52, Submarine Jim, Part 2 · 2026-08-03

Young dolphin Jim is tasked with steering the world's first submarine on wheels.

Cast

Lucas Grabeel Jim

Rebecca Hanssen Bianca

LS Louis Suc Cyril

Jemima Rooper The Sardines

Tara Fitzgerald Fabienne

Mitchell Mullen Yannick

Díana Bermudez Bonnie

Season 1

E1 Saving Private Sardine 2026-04-13 · 11 min Jim sets out to rescue sardines lost during a newspaper run.

E2 Bob 2026-04-13 · 11 min A sea urchin harasses Jim - can he find a way out?

E3 How to Shop 2026-04-13 · 11 min Jim dives into Cyril's bold plan to get a red sauce that humans use.

E4 Pit Stop 2026-04-13 · 11 min Jim implements various water-saving measures in the submarine.

E5 Foam Party 2026-04-13 · 11 min Jim feels left out when the sardines throw a party to which he is not invited.

E6 Bianca's Crazy Day 2026-04-13 · 11 min Bianca must pay Roy's ransom without Jim finding out!

E7 King Pong 2026-04-13 · 11 min A ping-pong tournament exposes Jim and Bianca's true skill levels.

E8 Big Boy Pants 2026-04-13 · 11 min Jim tries to act more grown-up to avoid a mutiny over the menu.

E9 The Expert 2026-04-13 · 11 min Jim and Bianca embark on a risky mission to retrieve onions.

E10 Portrait of a Captain 2026-04-13 · 11 min Jim commissions bold portraits to inspire his crew.

E11 Off the Radar 2026-04-13 · 11 min Bianca's past returns, and the sub goes undercover to protect her.

E12 The Sub Teacher 2026-04-13 · 11 min Jim swaps command for the struggles of student life.

E13 The Lake Break 2026-04-13 · 11 min Jim takes the crew camping at the bottom of a lake.

E14 USS Mean Shark 2026-04-13 · 11 min The sub is haunted by the USS Mean Shark - but what is its goal?

E15 The Vacation 2026-04-13 · 11 min Cyril secretly tags along on Jim and Bianca's camping trip.

E16 Road Rage 2026-04-13 · 11 min Jim gets behind the wheel to confront a road hog.

E17 The Wonder of Choice-Making 2026-04-13 · 11 min Jim learns the fortune teller is actually Cyril in disguise.

E18 ScubaScooper 2026-04-13 · 11 min Jim's robot cleaner thrills the sub - until limpets go missing.

E19 The Hunt for the Red Pompom 2026-04-13 · 11 min Jim must find the pompom he took by mistake.

E20 Going, Going... Gone! 2026-04-13 · 11 min Jim has to let Yannick go, but his charm makes it impossible.

E21 The Condiment Incident 2026-04-13 · 11 min A jar of pickles contaminates the submarine, causing chaos.

E22 The Dolphin for the Job 2026-04-13 · 11 min Jim goes for a game of ping-pong, but his crew barely notice.

E23 The Two-Headed Sub 2026-04-13 · 11 min Jim is sick, so Cyril and Bianca take over - together!

E24 Crunchyfish 2026-04-13 · 11 min A fake breaded mascot shatters Jim's belief system.

E25 Movie Night 2026-04-13 · 11 min Jim captures a human to find out the ending of a movie.

E26 Captain Nice 2026-04-13 · 11 min Jim tries to be Captain Nice, but the Urchins take advantage.

E27 The Mutiny, Part 1 2026-08-03 · 11 min The sub is off course in Burgundy, and Bonnie starts a mutiny.

E28 The Mutiny, Part 2 2026-08-03 · 11 min Jim is in exile and trying to find a new purpose as a water boy.

E29 Jim: Life on Gas Station 2026-08-03 · 11 min Jim has to survive in a gas station.

E30 The Good Neighbour 2026-08-03 · 11 min Cyril sees red when Jim rents the drawer above his.

E31 The Mentor 2026-08-03 · 11 min Jim becomes Bonnie's mentor.

E32 Cyril's Crazy Day 2026-08-03 · 11 min At the end of his tether, Cyril thinks he is a little fairy.

E33 Free Cindy 2026-08-03 · 11 min Pirates kidnap Cindy, who is living her best life.

E34 Captain All by Myself 2026-08-03 · 11 min Jim wants to prove that he can manage on his own.

E35 The Ritual 2026-08-03 · 11 min Jim has to invent a tradition to reassure the crew.

E36 Dear Diary 2026-08-03 · 11 min Bonnie threatens to reveal the contents of Jim's diary.

E37 First Contact, Part 1 2026-08-03 · 11 min All eyes turn to Jim when captain Roy is breadcrumbed.

E38 First Contact, Part 2 2026-08-03 · 11 min The submarine is hijacked on Jim's first day as captain.

E39 Vegas 2026-08-03 · 11 min Jim posts himself in a package to find Vegas.

E40 Last Brain Standing 2026-08-03 · 11 min The crew suddenly becomes stupid - but what is the cause?

E41 A Sardine's Crazy Day 2026-08-03 · 11 min One of the crew sardines decides to leave the sub.

E42 The Night Captain 2026-08-03 · 11 min Jim discovers that there is a night captain in the sub.

E43 Love Sub (A Sea Romance That No Fin Can Stop) 2026-08-03 · 11 min Jim and Cyril think that Fabienne and Yannick are in love.

E44 Fix-it 2026-08-03 · 11 min Discovering his inner handyman, Jim joins the urchins.

E45 My Buddy Jeff 2026-08-03 · 11 min Jim takes on a new identity to become friends with Shamik.

E46 The Jims 2026-08-03 · 11 min Cyril sets up a system of doubles to protect Jim.

E47 Detective Cyril 2026-08-03 · 11 min The steering wheel has disappeared, so Jim and Cyril investigate.

E48 The Visionary 2026-08-03 · 11 min Jim transforms the sub into a flying machine.

E49 Pirate Jim 2026-08-03 · 11 min Jim becomes a pirate in order to defeat Bonnie.

E50 The Fork 2026-08-03 · 11 min Jim becomes a gangster without noticing.

E51 Submarine Jim, Part 1 2026-08-03 · 11 min Jim is looking for 15 microwaves to defrost his father.

E52 Submarine Jim, Part 2 2026-08-03 · 11 min Jim reunites with his dad, who wants to take back control.

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