All's Fair in Love, War and Gymnastics

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.