Curry and Heyes sneak into Tombstone looking for a witness who could clear Big Mac McCreedy of a murder charge while trying to escape the notice of sheriff Wyatt Earp.

When Heyes loses his money to a crooked dealer, he threatens to expose the whole thing. But the owner of the casino calls the bluff, and Heyes and the Kid have to leave with their tails between their legs.

Until Heyes creates a revenge plan, involving friend Georgette, a false necklace and selling it to the casino owner. But instead of falling for this trick the casino owner manages to steal the real necklace.

Now things get really tough for Heyes, the Kid and Georgette, as the casino owner sees through their every bluff. Heyes finds out it's not so easy to out-con a con-man, but there is a solution to every problem...

Heyes and the Kid tracks friend Georgette to borrow some money for a high stakes poker game, but finds that George has plans of her own.

She intends to get the loot from a insurance fraud, that will soon be statute-barred - a diamond, hidden somewhere in the hotel where the thief was captured.

Present is also a professional bounty hunter, who also wants the diamond, and the sheriff who caught the original thief.

Who will find the diamond first? George, the sheriff, the bounty hunter, or the diamond-seeking animal that Heyes brings?