Constable Yvonne Hemmingway arrives for her first day at Sun Hill, and is paired with Klein to investigate a teenage girl who is being harassed. When a cyclist is hit by a stolen car during a pursuit, the prime suspect is one of the girl gang, Beth Tyler, the reluctant witness in a rape case several months previously. Taviner is devastated when he fails to revive a baby who appears to have died of SIDS, forcing Murphy to admit that she is pregnant with his baby. Thatcher notches up his first conquest in the form of Bradford, but she later receives a surprise proposal. Meadows receives Glaze's warrant card in the post. Johnson fails to get the hint that she may be chasing the wrong leads.