In a retrospective episode set immediately after the events of series two, Rachel faces further accusations of masterminding the fatal attack on ex-lover Nick and finds comfort in the arms of ever faithful Sean, agreeing to marry him. Amid the wedding celebrations, Janet and Ade admit defeat and decide to split up for good, while Gill is duty bound to take action when she catches Pete in a compromising position. The detectives also investigate the case of a businessman suspected of murdering a tramp.