A mechanical dog and two kids in masks chasing incompetent criminals across the globe, week after week, is somehow the formula that never gets old. The Doronbo Gang fails in exactly the same way every time, and you keep laughing because the timing and the stupid gadgets and the sheer commitment to the bit refuses to break. This is what happens when a show decides it doesn't need a plot to move forward, just the same brilliant stupid people doing the same brilliant stupid things.

Four pieces of a legendary stone called the Skull Stone are scattered around the world, and assembling them all will reveal the location of the planet's biggest vein of gold. The Doronbo Gang, a trio of scheming villains led by Doronjyo with her helpers Boyakkii and Tonzuraa, hunts for the stone on orders from their mysterious boss, Dokurobee. His tips are almost never reliable, so the gang keeps landing in trouble. Opposing them are Gan and Ai, who become the masked heroes Yatterman-1 and Yatterman-2, helped by Yatterwan, a large mechanical dog. The villains build a fresh mecha for every episode, and the Yatterman duo and their own machines keep wrecking each one. The result is a long-running adventure comedy built around the same doomed contest, episode after episode.