When Lucy wins tickets to see Blink 182 in a competition, Josh is desperate to take them off her hands. After all, he's a huge fan of the band, and Lucy's such a geek she's never even heard of Blink 182. Lucy agrees to give the tickets to Josh, but on one condition - Josh has to perform a truly unselfish deed in order to qualify for tickets. Of course it's a terrible struggle for the scam-meister, but Josh learns a whole lot about himself in the process. Sophie and Brian start to think about Valux and discover the extraordinary phenomenon of homesickness. Only, being aliens, their sickness comes out in really surprising ways. And when Mel decides she wants to make Trent feel jealous, she chooses to go on a very unusual date...