To all appearances Sergeant Jeff Muscles in just an ordinary run of the mill Action Man toy. But what only 13-year-old Danny knows is that there is nothing ordinary about this Action Man. Sergeant Jeff Muscles was a Green Beret who fought in the Vietnam War – and, as Danny says, – he was a hero, decorated by the President of the United States himself. One day Jeff’s platoon was surrounded by the Vietcong and Jeff sacrificed his own life to save his platoon. Somehow Jeff’s spirit got transferred into the Action Man figure and he struck up a friendship with Danny. Jeff has been training Danny in the art of jungle warfare and Danny is no mug but obviously not yet as good as Sergeant Jeff Muscles. When Danny is on his way home after one particularly violent jungle warfare session he is witness to a gangland killing over a drugs heist. The »bad guys« track Danny down and capture him, knocking him out and tying him up in a shed while the decide which bit of freeway they’re going to bury him under! But all is not lost – these guys know nothing about Sergeant Jeff Muscles – and all hell is about to break loose!