Champion boxer Kirk Carter is found drowned on the eve of his next fight. Eastern Insurance asks John Hunter has to investigate. Carter's fiancee Verna Matthews is suspicious about the recent behaviour of promoter Sam Harvey.

Gene Walker asks Rudy Lamb to stage a hold up in his own home so he can steal his wife's diamonds. Lamb follows his instructions but sees Walker shoot his wife before killing him. Eastern Insurance asks John Hunter to investigate.

Eastern European doctor, Austice Serafin dies giving aid in an epidemic in Kolitz. He has a large insurance policy with Eastern Insurance with brother flying into collect it however Serafin's widow claims he is still alive.

Walter Allan gets a call from the husband of his cousin that he has been robbed. He and John Hunter to go and help and find the man strangled. The police have been given the name Ralph Nixon but he has vanished.

Joy Allington is nearly killed on a skiing holiday in Switzerland. She sends a letter to Walter Allen telling him that her husband was trying to kill her. As the couple have accident insurance he sends Hunter to investigate.

Champion steeplechase horse 'The Mighty Warrior' falls and dies during a race costing Eastern Insurance £20,000. Hunter is sent to investigate Jefford and O'Shea stables and discovers that trainer Betty Fuller vanished after the race.

SS Tilman sinks with all hands. Owner Gormley sells it's sister ship, the SS Sircon for scrap. After collecting the insurance he buys a new freighter. When crewman Varga, who was on the Tilman, is found murdered questions are asked.