After a cutthroat state championship, Madison and her teammates are shocked when their coach, and Madison's Mom, have their bitter rival Lauren join their summer team for a momentous tournament.
The girls are reluctant to warm up to Lauren and greet her with a series of pranks; Madison is faced with a tough decision amidst her parent's divorce; Lauren struggles to balance her responsibilities at home with her love of lacrosse.
Madison becomes jealous of the bond forming between her mom and Lauren and tries to take her crush on Ethan to the next level; A famous athlete calls attention to the summer tournament as the girls take on Sacramento in the first game.
The girls face San Jose in game #2 and the Stanford rep who scouted Madison takes notice of Lauren's skill; the girls learn about Liv's secret girlfriend; Madison helps Lauren through a pregnancy scare when Lauren gets a surprise visitor.
Lauren worries about her sister and young niece; Madison and Paige have a blowout over Stanford; Dom and Lauren worry about their future; Ethan invites the girls to a college party where he makes the wrong moves that jeopardize the team.
The Bolts find themselves divided; Gamboa's parents learn how she's spent her summer; Paige is offered a head coaching position; The girls struggle to come together on and off the field as they play Las Vegas in the Finals.