pokemon episode 19 (18 is skipped due to being banned in the west although is a reference)

pokemon season 1 episode 19 “tentacool and tentacruel

as ash and friends travel by boat when they see the water type pokemon horsea which gives a warning about the tentacool which is taking out the builders of a resort the woman (who is the cousin of the villan of the banned episode) tries to bribe people to attack them which team rocket do but it creates a massive tentacruel (the evoled form) which starts destroying the town until misty convinces it to stop. misty ends the ep catching the horsea from before.