The two boys bring the hypnoring to school, shirking Mr. Krupp's demands, and angering Mr. Krupp to no end. He's not angry for long, as the two hypnotize Mr. Krupp.
http://tvtropes.org/pmwiki/pmwiki.php/Recap/CaptainUnderpantsB1C10The3DHypnoRing
FollowingRecap / Captain Underpants B 1 C 10 The 3 D Hypno Ring
Go To
