Episode Rankings
- #1 Fan Favorite


Every episode of The 21-Day Theory Season 1 ranked from best to worst. Discover the Best Episodes of The 21-Day Theory Season 1!
Using the 21-Day Theory, a determined woman pursues a wealthy man to prove he's straight—but the truth defies her expectations.
"Episode 1" is the best rated episode of "The 21-Day Theory" season 1. It scored /10 based on 0 votes. Directed by Unknown and written by Unknown, it aired on 1/17/2025. This episode is rated 0.0 points higher than the second-best, "Episode 2".