The defect detector is a device that lets Vee know if there’s anything wrong with chuggers as they pass by its scanners. Unfortunately, it seems to be malfunctioning! Eddie takes it off to the repair shed and Emery, wanting to be helpful, takes its place. But, worried that he might miss something, Emery sends nearly everyone to the repair shed, creating chaos in the depot!

Can't Catch Koko: When Harrison breaks down, Koko volunteers to replace him on the night shift, but Vee insists that Wilson and Brewster go too. Koko protests that Brewster will slow them down and races off, but when Koko is stranded on her own, due to a power cut, Wilson and Brewster must find a way to rescue her. Wilson and the Elephant: Wilson is determined to get his Animal Transportation badge by taking Ebo the elephant to his new home in the Safari Park. But the naughty elephant has other ideas!

Eddie Finds Time: The depot clock is broken, and the schedule is in chaos! Eddie needs to go to Old Town to see if he can borrow a part from the old clock to repair the depot clock. Brewster Knows Best: The trainees are doing a sign-reading exercise. If they work as a team and follow the signs correctly – there’ll be a wonderful surprise at the end of it.

Helpful Hodge: Koko challenges Hodge to a competition: whoever does the most jobs that day wins! But it has to be a secret. Hodge can’t even tell Eddie. Action Brewster: Brewster is so excited about seeing the new Action Engine movie today at the ride-in movie theatre. But Irving gives him the job of taking tin cans to the foundry for recycling. Brewster worries that he’ll never be back in time for the film - unless he can be as speedy as his Super-chugger hero!

Clunky Wilson: Wilson and Koko are having loads of fun racing each other – until Wilson damages his wheel! He’s scared of going to the repair shed to get it checked out, so he tries to put on a brave face and ignore the problem. Old Puffer Pete's Tour: Koko is yearning for adventure – and she just might get it, as today the chuggers are making deliveries out of town. But Vee asks Old Puffer Pete to accompany them – and he’s so SLOW.

Koko On Call: Twiga the giraffe is going to have a baby! An excited Koko has been given the job of keeping watch overnight, and fetching Dr. Gosling, the vet, if Twiga goes into labor. Zephie Ace Reporter: Zephie is given the important job of transporting newspaper reporter ‘Rag’ and photographer ‘Snap.’ They’re doing a story about Morgan’s new rail-going cycle, which Zephie isn’t happy about.