My Three Suns - [s1e7]

Instead of being executed, Fry is crowned as the new ruler because the Trisolian law dictates that whoever kills the previous emperor takes the throne.

In the episode , which first aired on May 4, 1999, the Planet Express crew delivers a package to the desert planet Trisol, where Fry accidentally drinks the planet's liquid emperor. Plot Summary [S1E7] My Three Suns

During the night, the former emperor is seen moving inside Fry’s stomach. The Trisolians plan to cut Fry open to retrieve their ruler, leading to a desperate attempt by his friends to "cry" the emperor out of his system through his tear ducts. Instead of being executed, Fry is crowned as