Dosthara Honda Hitha and Tommy are visiting a zoo in Ireland where they encounter Greco, a lonely and homesick gorilla whom they agree to take back to Africa. Aboard the ship it's discovered he's also pining for a mate, so they resolve to find the ape a girlfriend. In the jungle, Greco sees his dreamboat and chases her, but then the Doctor and Tommy meet attractive gorilla Raquel ...and they quickly realise the female Greco's after isn't who she seems!
