After four years of Season Three of Soy Luna, the gang reunite at the Jam and Roller one summer for Simón and Ámbar's wedding. When they find out that the Jam and Roller is being planned to be taken down completely and sold as land, they all have to team up and work together to find a way on how to save the place. Everyone grows up, discovering what they want to do with their lives in the midst of the chaos that ensues. Luna tries to manage life dealing with Matteo's new stardom and coping with the breakup of the Roller team. Ambar tries to uncover more her past and the mysteries behind her childhood. Some new folks from before even make a surprise appearance when needed most.
Through skating, love, friendship, and romance the gang all persevere to make this summer one unforgettable one. (Note: All of the main ships are included and almost all the characters get a story and importance to the plot).
After Savannah walks in on her longtime boyfriend and another girl, she walks to her apartment starts taking shots and decides to go out to the bar her roommate and friends are always talking about. Already pretty drunk she runs into her roommate and her friends... too drunk to realize she walked into a swingers club she drinks more and parties with her roommates. Somewhere in the middle of the party they all decide to buy tickets to a swingers cruise. What happens when Savannah has no memory of the night before and all the dirty things that went on? What happens when she steps foot on the cruise excepting a nice relaxed vacation?