Randall and Hopkirk (Deceased) (1969)

S1E11 The Ghost who Saved the Bank at Monte Carlo

Marty's Aunt Clara employs Jeff as her protector on a journey to Monte Carlo, where she aims to secure £100,000 using her unique gambling strategy. As they are shadowed by various criminal factions, Marty cleverly alters the outcome of the last roulette game, ultimately causing them to forfeit their would-be assailants by pretending to lose the money.