Road Crime Unit officers Giles and Roger are flagged down in Plymouth when a member of the public is believed to be having a heart attack.

Dog handler Steve deals with an aggressive assailant; the Road Crime Unit pull over a BMW loaded with drugs; and the Tactical Aid Group kit up and prepare for a raid in Torquay.

The Road Crime Unit make a surprise discovery after pulling over a car, and dog handler Steve pursues a suspect. Meanwhile, the Tactical Aid Group raid a flat.

The Dog Squad's Colin and his German shepherd, Raven, are called in to control a group of rowdy kids.