The round opens with a Yellow and Pika, who are fishing, spotting a Farfetch'd heading towards the sea. Pika uses Surf to take itself and Yellow to the spot where the Farfetch'd was going to fall. Seeing that its wing is injured, Yellow heals it and then asks it what happened to it. It is revealed that Farfetch'd no longer remembers the way to its nest, and that it was injured because the forest had attacked it. It also says that the forest changes every time, so Yellow uses Kitty's String Shot to keep track of where they go. Despite the fact that they had been moving in a straight line, Yellow finds out that they had been apparently going in a circle. The forest's trees start to drop their eggs on Yellow, Pika, and Farfetch'd. Yellow commands Pika to use Thunder Shock which does little to stop the trees' attack. Suddenly, the trees pull their legs out of the ground. Realizing that she is unable to stop the trees, Yellow brings out Dody, hoping to be able to escape. They escape to a cliff, and Yellow notices that the forest is moving.
Yellow quickly realizes that it is not a forest that is moving; it's a large group of Exeggutor and Oddish. She quickly contacts Professor Oak to ask him why the Pokémon were behaving so strangely. Oak believes that a mass migration of Exeggutor and Oddish would explain why Farfetch'd would be lost. However, it wouldn't explain their migrating before their breeding season. He then theorizes that the Pokémon are sensing a terrible future event.
The scene cuts to Cerise Island where Lance, Agatha, and Lorelei lurk. Lance announces that Pokémon are realizing that he is about to strike and then promises to defeat Yellow.
Back with Yellow, Farfetch'd is able to find its nest. Yellow thinks about the future terrible event. In Oak's lab, Oak's granddaughter Daisy Oak has begun to help out. When she states that Yellow is an interesting boy, Oak explains what Yellow's goal is, stating that he believes in her.
Spoilers end here.
For a list of all major events in the Pokémon Adventures manga, please see the timeline of events.