Koko and the Tunnel is the fourth episode of Season 1.


On the way to the training yard, Koko spots a tunnel near the platform. Curious, she asks Vee a multitude of questions about it but gets no satifactory answer. Later, she and Wilson sneak down it, but Koko comes off the rails! What will they do now?



  • When Calley is coming to rescue Koko, she is pulling a magnet car.
  • Brewster, Koko and Wilson couldn't switch the points in this episode, but in the previous episodes, they knew how to switch points.
  • If Koko is electric, when she comes off the rails her wheels would not be able to move. If Koko had jumped she should have gone straight forward.
  • The captions on the BBC iplayer misnames Calley as Kelly.


Other languages

Language Name Translation
German Koko und der Tunnel Koko and the Tunnel
Polish Koko i tunel Koko and the Tunnel
Russian Коко и туннель Koko and the Tunnel


Season 1
Can't Catch KokoWilson and the ElephantClunky WilsonKoko and the TunnelBraking BrewsterHodge and the MagnetKoko and the SquirrelsWilson Gets a WashBrewster Goes BananasBang Klang WilsonOld Puffer Pete's TourLate Again, Eddie!Wilson's Smooth MovesCool WilsonThe Chugger ChampionshipAction BrewsterKoko's Puppy TrainingZephie's ZoomaroundKoko On CallOutward Bound OlwinBrewster and the DragonWake Up WilsonBrewster Knows BestKoko Pulls it OffWilson and the Ice CreamWilson's Wacky Tour

Hodge's SecretFrostini's Fruit FandangoZephie Ace ReporterFamous EmeryWatch Out WilsonBrewster's HobbyZephie's Monkey BusinessPoor Old Puffer PeteInspector EmeryNurse WilsonMtambo's Amazing AdventureRock-A-Bye ChatsworthHelpful HodgeBrewster to the RescueWilson and the Paint WagonEddie Finds TimeMtambo's Royal TourWilson and the Wild WindOld Puffer Pete's Firebox Jet Pack WilsonBrewster's Little HelperBubbly OlwinKoko Takes ChargeWilson's Paper TrailOld Puffer Pete's Big ShowTraining Time, Harrison

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