Heartbeat (1992)

S6E16 Old Friends

Eileen is surprised when an old love, Antonin, reappears, proposing marriage. However, she turns him down, staying loyal to Katie. Meanwhile, Nick goes undercover as a dockworker to track down an escaped convict. During the mission, Phil goes missing and is later discovered trapped on a boat. In the midst of this, Claude is caught buying fish under dubious circumstances. Nick spots him and warns him to steer clear of Whitby, where the investigation is actively unfolding.