Jim decides to beef up security at an auction where a famous diamond is to be sold when a notorious jewel thief, Philippa Vale, who has never been caught decides to visit Jersey.

Philippa Vale returns to Jersey planning to recover the jewels she was forced to abandon in a previous encounter with Jim.

Philippa comes to Jim for help when her life is threatened by a right wing organization demanding the return of a notebook that she knows nothings about.

Jim gets involved in a murder while matching wits with Phillipa Vale.

Phillipa, out on parole, decides to give Jim some unwanted help in finding a stolen horse.

Philippa Vale gives sanctuary to a Canadian Olympic track star whose life has been threatened when he refuses to boycott an international hearing concerning drug abuse by athletes. Jim and Susan break off their relationship.