Brock rejoins the group, meeting May and Max for the first time in the process.
The title is a reference to the phrase "you never can tell." The original English dub title was announced as You Can Never Taillow.
Ash, May, Brock, and Team Rocket break the fourth wall in this episode when they fight for a larger portion of the split-screen.
Ash catches a Taillow.
After catching it, Ash lets out his new Taillow and cleans off its chocolate with the same handkerchief Misty gave him when they said goodbye.
Coincidentally, this episode also features Brock's return.