Have Gun, Will Travel (1957)

S05E37 Jonah and the Trout

Title: Jonah and the Trout Plot: When $20,000 worth of gold bars is taken and hidden in a lake, Paladin sets out to recover the treasure. However, Jonah, a determined fisherman, has claimed the area for himself, intent on catching a massive trout and unwilling to let anyone disrupt his plans. Meanwhile, the trio of thieves lurks nearby, poised to spring a trap on Paladin as soon as he retrieves the gold. The stage is set for a tense showdown between ambition, greed, and the quest for riches.