On the way to the international meet in Hungary, the girls get a connecting flight to Romania to convince Sasha to come back to The Rock.

In the series finale, Payson boldly changes her floor routine, jeopardizing her spot on the team. Meanwhile, Kaylie's shocked by her drug-screening results; Lauren weighs her recovery against her Olympic dreams; and Jordan won't accept help from Kaylie.

Lauren is heart-broken to discover that her heart condition will require surgery and wonders how this will affect her chances of making the Olympic team.

Emily's worst fears about Damon spending so much time with Kaylie are realized when Kaylie confesses to kissing Damon.

When Carter comes clean about his infidelity Kaylie takes off the night before leaving for Nationals, and the girls must track her down before it's too late.

With only six weeks to go until the Olympics, Coach MacIntire is starting to feel the pressure as it appears his coaching style is not yielding the results everyone was expecting.

Kaylie is put in rehab for her eating disorder and makes a new friend, Maeve, a model who has been in and out of rehab before. Sasha decides to leave The Rock and move back to Romania. Emily is told that under her probation that she is under house arrest and must wear an ankle monitor.

Shelia continues her quest to ruin Kaylie, which now involves taking away Kaylie's new endorsement deal with Healthy Bar. However, after hearing Kaylie give an interview about how Kelly should be the team captain because of her experience and accomplishments, Kelly starts to feel differently about their rivalry. At the same time, Kim and Summer start to put the pieces together about the true origins of the Payson/Sasha kiss video.

In the season finale, everything is put on the line as the girls go up against the Chinese team to prove once and for all that they're the best.

The Rock girls prepare for a meet with the Pinewood Club, the worst-ranked gym club in the country. The girls worry that the Pinewood Club won't give them enough of a competition to prepare them for an up-coming international meet in Hungary. Meanwhile, Damon and Kaylie become closer as he starts recording his album at the recording studio in Kaylie's house.

The girls compete in the semi-qualifications. Meanwhile, Kelly's mother tries to take down Kaylie; Payson gets overprotective about Lauren's health issues; and a new curfew halts Payson's burgeoning romance.

Kaylie finally returns to training at The Rock, but the public is under the impression that her time away from the gym was from an ACL injury, not rehab for anorexia. Soon after, Sasha announces that Kelly Parker is going to replace Emily on the World team, and that Kaylie will be replaced, as well, since she has not had enough time to train.

The girls are visited by their families, and Payson's dad gives her some bad news while Kaylie tries to curb her parents' feuding by making Austin tag along to a family dinner. Elsewhere, Lauren is advised to consult a doctor about her condition.

Coach MacIntire introduces a new training technique that pairs up each of the girls with a permanent training partner.

Emily finds out that her mother is dating Steve after Lauren confronts Chloe. Meanwhile, Payson has an appointment with a top-ranked back surgeon; and the National Team must prove their worth and step up their game.

The exit of Coach Marty and one of "The Rock's" top guns, Lauren, causes chaos at the gym. Prompting Payson, Kaylie and Emily (with Becca in tow) to head for Denver with a plan to confront them about their defection. All of this happens at the same time as the Cruz's (Ronnie and Alex) invite everyone to the mansion for a meeting. Meanwhile, Lauren is less than pleased at the cool greeting she receives at the new gym. And shocked by the discovery that she makes concerning her father and his 'Personal Assistant', Summer.

Valentine's Day is just around the corner and whether they like it or not, the girls have to face the ones they love. Payson receives flowers and chocolates from her new friend at school, which prompts The Rock parents to over-analyze the situation. Meanwhile, Summer and Sasha share a "moment" of their own.

After busting them for going to the party, Sasha puts the girls through a rigorous day of training and team building.

With everyone gearing up for Nationals, the pressure is on at The Rock. To celebrate, the Cruz family is hosting the Nationals send-off party where, it turns out, everyone has his/her own agenda. Still dealing with her back pain, Payson decides to take a fellow gymnast up on his offer for some anti-inflammatory medicine behind her Mom's back. Summer plays a new card in her relationship with Lauren to see if she could finally turn things around. Lauren, on the other hand, has decided to make her final move to break up Carter and Kaylie for good, with explosive results. But with all the drama going down at the party, what should be a fun event turns out to be something very different.

A new girl, Emily Kmetko, comes to train with they veterans at the gym and finds that they are both impressed and threatened by her.

Tensions are still high at The Rock as the girls continue on without direction and with the surprise return of Lauren, Steve and a possible new heavyweight coach. Before the new coach's strict workout regimen takes effect, Emily, Payson and Kaylie decide to hit up a high school party to blow off some steam. Once at the party, Emily has an uncomfortable run-in with Razor, Kaylie has a fight with Carter after he realizes she lied to him, and Payson can't believe she's wasting her time at such a trivial event. Bringing more stress than fun to their lives, it's not exactly how the girls envisioned their evening. Meanwhile, Lauren's birthday takes a wrong turn when Summer shows up at her birthday dinner.

The Girls get ready for China. While the mothers help out making the girls feel welcome when they go, Damon and Emily confess their feelings toward each other, which makes Razor feel even worse, and Lauren tries to convince her Dad to break up with Chloe.

The girls raise the bar with their training in preparation for a competition against the Chinese team, but troubles at home and confidence issues plague them. Meanwhile, the moms hold a fund-raiser to cover the Chinese team's travel expenses.

The Rock is gearing up for Nationals, and with that comes more pressure, while Emily has to deal with the consequences of her actions.

The girls devise a plan to get Marty fired; Sasha attempts to find a place for Payson at the gym.

Kaylie, Lauren, and Emily have their final National Team practice before World Team tryouts, and Ellen Beals seems to have it out for Emily before the practice even starts!

After going rogue and defeating the Chinese National Team but going against the NGO, the The Rock girls are at their best. But when they find out the National Team is having team practices without them before an Invitational meet in France, the girls are not that confident that they will make the cut. And now Payson is back and she is determined to get to the top once again, but is she really ready? And Carter and Lauren's relationship is starting to heat up, but when will they let Kaylie know about it?

The Rock gears up for the annual awards banquet dinner, The Rocky Awards, and Lauren is determined to win the Miss Congeniality award the best way she knows how – with bribery and cheating. But even after all the free smoothies, barrettes and massages, will Lauren get her way or will she be usurped by a silent but strong contender – Emily?