When Splash and Bubbles argue, Dunk and Ripple teach the duo how to communicate and cooperate with one another. Then, Splash's friends think he's so good at hide and seek that they challenge him to find other sea creatures!
Gush's long-lost son Wart shows up in Reeftown to visit. Gush is excited to take care of Wart, but he's very independent and only wants to visit! Then, Ripple sets up a full day of special activities to give her papa time to relax.
Bubbles learns that every drop of ocean water is full of life, and decides to take in a nanoplankton friend who is invisible to everyone! Then, Tidy cleans up the kelp forest in anticipation of his new partner, a female fish named Neat!
After a series of mishaps, Dunk becomes convinced that his lucky rock has become a bad luck charm. Then, meet Maury! He's always "spreading the word" about things on the reef, but often gets things wrong.
When Splash and his friends play "surprise fish," they accidently release a "fear smell alarm." Then, The Reeftown Rangers help Dorsal locate his old friend Spin, who is another spinner dolphin he hasn't seen in years!
Splash and friends are playing in their clubhouse, but when Jerome and the fusiliers show up everyone must agree on who can use the clubhouse! Then, Splash discovers that most things around him on the reef are actually living creatures!
When a big storm passes over Reeftown, the friends learn they don't need to be afraid of the rain! Then, the kids' old friend Scoot stops by the reef to see Splash and the gang. The kids show him everything that Reeftown has to offer!
Dunk meets Puffy, a female pufferfish who admires his sand patterns and becomes friends with her! Then, Splash experiences his first earthquake on the reef! Bubbles and Dunk attempt to find out what caused "the big shake."
