When Harvey Drew unwittingly responds to an alien signal, he is transported to the Toxic Spew by the ship's computer, who promptly loses his return address. Even though none of the crew have ever met an Earthling, Harvey becomes Captain of the stroppy, pizza-obsessed crew, and has to save them from poisonous pink maggots, exploding space-rubbish and a multiple spaceship pile-up. Luckily, Harvey is just the boy to save the day!