The Goodies (1970)

S04E05 The Stone Age

Graeme stumbles upon a forgotten tunnel beneath the Goodies' office, and his enthusiasm for spelunking leads the trio into a bizarre predicament. After venturing deep below, they find themselves swallowed whole by a living tyrannosaurus rex, trapped in its stomach. With limited options and growing panic, the Goodies must rely on their wits—and a fair share of slapstick—to escape the prehistoric beast before it becomes their final resting place.