As the title implies, the three blind mice are musketeers. The cat sets a number of traps for them, which they all evade (apparently without realizing it) while he sleeps. The cat eventually wakes up and begins chasing them unsuccessfully, thanks to their teamwork.
The cast behind this title
Titles you might also enjoy
About
Three Blind Mouseketeers (1936) is a animation movie. Starring Billy Bletcher, Pinto Colvig. Rated 6.4/10 on TMDB. Watch it online free on ZapFlix.