Overview: A worker is stuck high up on a tree, badly hurt from his chainsaw. Pearce and Clingfilm get him down. Mickey calls Kevin at the station. Pearce listens to his conversation and goes investigating on his own, talking to Maggie about the attacker. Billy's Mum explains to him why she walked out on his father ages ago and left him behind. Nick takes little Costas home from the hospital. Ariadne's parents are with him to take care of the baby when he goes to work. Sandra returns from her holidays. Maggie takes self-defense classes and meets Derek, the instructor and hair-dresser. Evgenia tries to persuade Nick to let them take Costas to Cyprus with them. Blue Watch gets to train on the fire brigade helicopter. George is scared of flying, but overcomes his fear. During night shift, Blue Watch is called to a huge blaze at a shabby council house.