Rocky is targeted for death after seeing a meeting between a truck dispatcher and a crooked executive. Jim wants desperately to protect his father but discovers he hasn't been keeping up with Rocky enough to even find him on a typical day. The dispatcher was giving the supposedly-retired Rocky work as a trucker, so when Jim discovers the dispatcher dead in a crate bound for Malaysia, the police figure the elusive Rocky knows why.

The Rockfords work with Sgt. Becker to solve Rocky's friend's murder. When 6 tractor trailers from the same depot are hijacked by a gang, there must be a connection with the killing, but who desperately needs tons of ladies' underwear, grapefruit and dynamite ? The proud Rocky resents Jim taking care of him, making the slew of hit-men even harder to combat for Dennis and a very confused LAPD.