First broadcast 13th February 1975.br br Regan adopts a new identity as an ex-con and goes undercover as a truck driver to expose a hijacking ring.br br br John Thaw - Reganbr Dennis Waterman - Carterbr Garfield Morgan - Haskinsbr Stanley Meadows - Harry Poolebr Susan Tracy - Franbr Tony Steedman - Andrew Barkisbr Marjie Lawrence - Mrs. Harrisbr John Forgeham - Dennis Rawlinsbr Carl Rigg - Det. Sgt. Kentbr Robert Russell - Arnibr Jeremy Young - Wrenbr Terry Cowling - Keseybr William Moore - Det.