In this continuation of The Summer I Learned to Dive, nineteen-year old Finley "Finn" Hemmings is living in Graceville, South Carolina with her grandparents. She's getting to know the family that she was separated from for the last sixteen years. Finn and Jesse's relationship seems to be going strong until they're forced to deal with obstacles that throw them off-track. As Finn prepares to leave for college, she has to say goodbye to the town, her friends and family, and the way of life that she has grown to love.
At college, Finn tries to acclimate to a new setting, but quickly falls into an old pattern. Just as things start to become normal and Finn begins to fit in, something unexpected happens that takes her back to Graceville where she is forced to deal with one challenge after another. Her world nearly collapses, and she finds herself struggling to keep from drowning. Through it all, Finn discovers the power of love and friendship. She learns what it means to follow her heart and to stay true to what she wants, even if what she wants isn't what she originally planned.