Gerry is approached by Ralph Paxton, a boyhood friend who became a career criminal and was imprisoned for a jewel robbery. Ralph believes that his grandson, architecture student Jake was murdered by his partner in crime Wayne Pelham because the boy discovered the loot hidden in a tower block due for demolition. After interviewing Jake's brother and his college tutor the team locate Pelham, who informs them that others knew about the hidden jewels. The team eventually end up with two prime suspects, both of whom believing that they were acting out of principle, though one is the killer. Gerry also has to overcome his dislike of the solicitor to whom his daughter Caitlin is getting married.

Más de treinta años después de la muerte de Amy Taskerland, una escolar, en un baile de fin de curso, se descubre una cápsula del tiempo que contiene una cinta donde expresa su miedo hacia Alec. Ni su padre William ni su mejor amiga Harriet pueden identificar a Alec, aunque el director de Amy queda bajo sospecha ya que tenía una aventura con ella mientras salía con la maestra Carla O'Brien. Luego, Danny descubre que Amy parecía estar recitando un discurso para ser utilizado por la reina en caso de guerra nuclear, lo que lleva a descubrir la identidad de Alec y, a su vez, a descubrir quién mató a Amy. Mientras tanto, Gerry tiene una sorpresa en la despedida de soltero de su futuro yerno, mientras que Strickland prepara una sorpresa aún más grande y Danny logra hacer de Cupido exitosamente para Sasha.