Lomax and Steve, Max's son, spend a week together on the canals; Steve challenges Max to prove his innocence. He knows his father needs money to finance his quest and robs a betting shop. However, the shop belongs to local gang boss, Jack Ormand, who sets his heavies on the trail.

Lomax is coming closer to the man who framed him. A Fleet Street hack thinks he may be able to help, but most assistance comes from Lomax's girlfriend, Maureen, who gives him the name 'Len Martin', but Martin remains one step ahead.