Marv's mum says Sizzles really is a very naughty dog, but Lola knows this isn't true. Sizzles just needs some practice! Charlie and Lola take Sizzles back to their flat and set about training him. Things aren't going well until they discover that Sizzles will do anything for a sausage. Which is fine until Morten, Marv's little brother, eats Sizzles's sausage by accident!