Code Two

Code Two is a 1953 film about men training to be motorcycle cops. It stars Ralph Meeker, Sally Forrest, Elaine Stewart and Robert Horton and was directed by Fred M. Wilcox.

The three rookie cops become bored on the job. Seeking more action and excitement, they perk up after hearing from Sgt. Jumbo Culdane about the police departments motorcycle squad. Mary is skeptical, fearing for Russs safety, but all three take the necessary training and are assigned to the motorcycle highway patrol.While chasing a truck together, Chucks cycle stalls so Harry proceeds by himself. He is knocked cold by one of the men in the truck, which then backs over him. Chuck is devastated by Harrys death and persuades his superiors to let him work undercover to find the culprits. ........

Source: Wikipedia