The Assassination Run(1980)

The Assassination Run is a spy thriller following Mark Fraser, a former British Intelligence operative who spent years as an elite assassin before abandoning the life. After marrying his girlfriend Jill and retreating to the Scottish Highlands, Fraser's past catches up with him when she's kidnapped by German terrorists. Forced back into action, Fraser must use his lethal skills to negotiate her release—the price being the assassination of a right-wing German publisher. Caught between his desire for a peaceful life and the impossible demands of her captors, Fraser faces a dangerous mission that threatens everything he's tried to leave behind.