Brewster Goes Bananas is the thirteenth episode of Season 1, but the ninth episode in production order.
The trainees are learning how to catch mail sacks with the mail car when Vee calls Brewster away to Platform 6. Once at Platform 6, Brewster is to deliver a box car full of bananas to the Safari Park as the bananas, delivered the previous day, have disappeared. Upon arrival at the Safari Park, Brewster talks to M'tambo who explains that the monkeys are hungry. Unknown to them, the banana theft sneaks aboard Brewster.
On their way back home, Peckam, who is riding in Brewster's cab, feels something touching him but can't see anything, and then, Brewster hears a banging noise, unaware it is the banana theft jumping about in the box car. Though Brewster takes the box car to the Repair Shed, Morgan can't find anything wrong with it except there are some bananas scattered inside. Soon, the noise comes back and Morgan tells Brewster to leave the box car inside the shed.
Whilst Brewster goes back to his training, Eddie is carrying out some repairs with Hodge when his spanner goes missing, and Lori is polishing Old Puffer Pete when a flying banana lands on his whistle. Back at the Training Yard, Brewster finds the mail car on its own as Dunbar, Koko and Wilson had gone to visit the Mail Depot. However, when Brewster carries out his training, the mail sack on the lineside post moves away from the net. Confused, Brewster gets Eddie and Hodge to help him, only to discover the mail sack open with empty envelopes. Brewster explains about all the strange things he'd noticed, and then, has an idea to catch the culprit. Eddie puts his lunch box in the net of the mail car and then, the banana theft comes and Brewster moves the net, shutting the car door.
Brewster explains that, as he saw bananas everywhere he'd been, the banana theft is none other than a very cheeky monkey. Soon, the cheeky monkey returns Eddie's spanner and Brewster takes him back to the Safari Park.
- Old Puffer Pete
- Harrison (cameo)
- Chatsworth (cameo)