Description:  Bucky and Pepito is a 1950s animated Western series about an imaginative American cowboy-wannabe named Bucky and his Mexican inventor friend, Pepito. The show features the two boys on adventures in the American Southwest, using Pepito's gadgets to outsmart villains and overcome slapstick mishaps. While it is remembered for its cartooning backgrounds, it is also considered problematic today due to its portrayal of Pepito as a stereotype, notes Wikipedia, Kids encyclopedia facts, and Don Markstein's Toonopedia.

Bucky: An energetic American boy with a cowboy hat who dreams of being a legend.
Pepito: Bucky's clever Mexican friend and inventor who comes up with gadgets and schemes to help them.

Plot: Each episode involves Bucky and Pepito on an adventure, often dealing with a villain of the week. They use Pepito's inventions and their own wild plans to get out of chaotic situations.