In the Knicker of Time! is the fifth episode of Pokémon Advanced.
Brock is ready to travel again and has joined up with Ash, May and Max as the journey on towards Rustboro City. In the forest they encounter a giant Zigzagoon, which they soon realize is actually a trainer in a Zigzagoon suit. Nicholai the Knickerbocker is a trainer that believes in becoming one with Pokémon in order to understand them. While battling, he wears a costume of whichever Pokémon he is using. When not dressed as a Pokémon, he wears knickers in order to be closer to nature. Nicholai is very excited to learn that May is the daughter of the Petalburg Gym leader. He challenges her to a battle and quickly defeats her. Nicholai taunts her for losing, saying that he doesn't think her father will be difficult to beat since she is such an inexperienced trainer. Brock, Ash and May shrug off the defeat and continue on their way, but Max is furious. Without telling anyone, he goes off in search of Nicholai to defend his father's honor—but what will happen when he gets in trouble with a pack of angry Zigzagoon?
Ash battles a trainer who has got a Beedrill. Pikachu attacks with Thunderbolt and defeats Beedrill. After the battle, Max complaints about how Ash should have used Quick Attack. During a moment, a Zigzagoon runs before them. Max notices that it is quite larger than a normal Zigzagoon should be. As they notice a pack of Zigzagoon, a man comes, removing his Zigzagoon disguise. May thinks that Zigzagoon evolves into humans...
The man is bringing Mudkip out, but May comes to analyze the man, marking him as a human, however, the Zigzagoon flees away. The man yells at May and Max, but notices they have knickers, so he introduces himself - wearing many costumes, he can be a Tentacruel, Zigzagoon or any other Pokémon, but says that his true name is Nicholai. He mistakes May and Max to be Knickerbockers (people who expose their knees to nature). Nicholai is then introduced to the gang, but pays attention only to May and Max. He answers that he wears Pokémon suits to feel what it is to be a Pokémon so he may capture them much more easily so he may challenge the Petalburg City's Gym Leader.
As Nicholai hears that May and Max are Norman's children, he challenges May to a fight. May acts reclusive, but when Nicholai says she's afraid, she accepts the challenge. Nicholai brings his Mudkip out to fight and dresses as a Mudkip. May brings her Torchic out and announces the Torchic to fight, but Torchic is confused as it does not know which attack to use. May orders to attack with Ember while Nicholai orders to attack with Water Gun. May then orders to attack with Peck, but Mudkip blasts Torchic with Water Gun, ending the battle.
Nicholai thinks that when he captures a Zigzagoon, he'll beat Norman as he beat his daughter, so he goes away. Team Rocket spies on Nicholai, planning to take his Mudkip. May is depressed by the defeat, but Ash and Brock cheer her up a bit. However, Max is gone for some reason. Max is seen to be spying on Nicolai and sees that (in his costume) he is spreading some fruit to attract the Zigzagoon. Max has captured a lot of fruit to attract all Zigzagoon, in order to foil Nicholai's plan. However, he is surrounded by a lot of Zigzagoon. Ash's Taillow spots Max and the gang comes to him. Ash's Pikachu attacks the Zigzagoons with Thunderbolt. Max gives the fruit to Brock who turns on Zigzagoons, but one of them sprays him with some sand because they are angry for being interrupted.
Nicholai appears in his costume, making the Zigzagoon follow him. Mudkip uses the Water Gun to make the fruit come off the trees. Then Max apologizes to Nicholai for making revenge against him. Max asks how is he able to communicate with Zigzagoon so well, so Nicholai makes an example - he will battle one of the Zigzagoon. Nicholai transforms into a Mudkip and orders the Mudkip to attack with Water Gun. Zigzagoon evades, knocking the Mudkip out. Mudkip strikes again, hurting the Zigzagoon. Nicholai uses a Poké Ball, to which he successfully captures.
However, Team Rocket appears, stealing the Mudkip. Pikachu uses Thunderbolt, but Team Rocket negates it by using a satellite dish and redirecting the attack. Nicholai transforms into a Aipom and climbes the mountain pretty damn quick. The Zigzagoon then dig holes. Nicholai transforms into a Gligar, taking the Mudkip with himself from James's hands. Ash brings Taillow out and orders to attack with Peck the ballon. Team Rocket then land in the hole Zigzagoon were digging. Jessie and James call their Arbok and Weezing out. Despite the first attack, Pikachu knockes both of them. Then Pikachu strikes the Team Rocket with Thunder, blasting them away.
Nicholai is impressed by Ash, even if he is not a Knickerbocker. He challenges Ash to a fight with Zigzagoon. Ash brings his Taillow out. The episode ends with Taillow battling the Zigzagoon.
- "I didn't know that Zigzagooon could evolve into humans.
Are we really related?" - May and Max
The Who's that Pokémon? of this episode is Yanma.
- Max got the weight of Zigzagoon wrong, saying it's 8 lbs, when it is actually 38.6 lbs.