Twenty years ago, Emma, Mackenzie and Serena bonded over their New York City dreams. Then, each summer, they spent one week together at the lake. It's been five years since Emma has seen her friends, but now she's in desperate need of their support. But when a terrible accident keeps Emma from saying her piece, Serena and Mackenzie begin to learn about the past on their own. Now, to heal their friendship and their broken lives, the three women will have to return to the lake that once united them and discover which relationships are worth holding on to.