Marlin chases after the speedboat but soon loses it. Asking for directions, he meets Dory, a blue tang who suffers from short-term memory loss.
She helps him find out that Nemo has been taken to Sydney, and the two of them travel there on the East Australian Current. During their time together, Dory teaches Marlin to be more carefree. Meanwhile, Marlin and Dory meet fish-friendly sharks, who had sworn never to eat a fellow fish, and they adopt Marlin and Dory as buddies.