Newly-formed flatmates Brennan and Toadie are the odd couple, with obsessive-compulsive Brennan completely freaked out by Toadie's slobbish house manners. Both of them complain to Lucas that it's not going to work, Toadie wants to be able to relax at home over-riding Brennan's efforts to keep everything tidy and in order. However, Lucas makes them both see that there may be advantages to living together, and they decide to give it a shot. Then, a package arrives to Callum from Aunt Robin and Toadie's life becomes messy again. He doesn't need reminding that Sonya's Callum's real mother. So, he decides to lock the package away and not tell Callum anything about it. Can he really keep this from Callum?
Summer's still dirty at Andrew and she makes it completely obvious she has absolutely no respect for him anymore. He wants to win back her respect but how? When Paul gives him some advice about being a Robinson, he decides to join Summer, Chris and Tash on an intensive study day being held at uni, hoping to impress her with his ability to knuckle down to some serious work. She still thinks he's a fraud and rejects his efforts, until Andrew catches the eye of the attractive university tutor and Summer's jealousy is piqued. Now he's convinced she's still interested and plans his next move.