Kai and Bailey return from the summer tour, and Kai becomes jealous when she sees some of Vin's paintings of a naked girl. Dale is replaced by Liz as the boss of WaveSync. Bailey's brother DJ makes a surprising visit.

After seeing DJ with thousands of dollars, Dawn becomes suspicious and tells Bailey. Lacey tries to avoid the livingroom when a webcam is installed.

Kai sets out to make Vin jealous. Liz's latest marketing strategy ends up upsetting Lacey. Dawn convinces Bailey to not turn his back on DJ.

DJ continues to have problems while Lacey is mad because of something posted. Bailey might not be able to surf again. Kai tries to make Vin jealous... by kissing another guy.

As the team faces the possibility of losing the WaveSync house, Lacey and DJ run away from their problems and into each other's arms.

The team faces the possibility of losing the WaveSync house; Lacey and DJ run away from their problems and into each other's arms.

Bailey tries to purge himself of all his past flings at a chance for a real relationship. Lacey and DJ write to each other during DJ's absence. Wavesync works with the Surfrider Foundation. Justin and Liz's Fire begins to spark. Vin and Kai try to talk. Dawn realizes that she has more in common with Bailey than she thinks. Birdie shows why she has the name. Vin's girlfriend realizes that Kai isn't as meek as she thinks. Shoe introduces Sofia to Justin

When Justin and Dawn decide to take a short getaway they experience some technical difficulties. Meanwhile, the others become distracted at a large benefit party. When Justin and Dawn become shipwrecked, no one even notices them missing or attempts to help.

Dj wants to stay in Hawaii with Bailey for Lacey despite the probation and aftermath he has to deal with now. Dawn starts to feel different about her relationship with Bailey and after talking to Justin breaks off their relationship. Eric finally gets Birdie to go out on a date with him, breaking the promise to herself that she would never go out with a cop.

Kai's little Sister takes a shine to Dawn, and Kai doesn't take a shine to that. Rochelle Ballard appears as herself. Birdie is starting think she's in over her head. Justin and Liz are "checking the books," like a team now. Liz's Godsister, Riley Westlake, comes for a visit but she's no angel.

Happy Birthday to me. It's Lacey's birthday and she's all but all alone. DJ is at extra football practices or so he says. Birdie talks to Liz about the contemplation of Pity dating. Kai forbids Dawn from seeing Malia, before she finds out about Dawn giving her a condom. Justin plays the wise elder. Riley is starting to show her true colors more and more as she continually tries to vie for a spot on the wavesync roster. Eric and Birdie finally have "the talk."

Justin's loyalty is tested when Liz asks him to kick off one of the wavesync girls in order to let Riley become a wavesync girl.

Riley is jealous of Lacey because she was chosen to go on a trip to Australia instead of Riley. On Prom night, Riley sees an opportunity to replace Lacey on the trip and takes advantage of the opportunity.