Enjoying a new lease on his baseball career as the closer for the minor-league Myrtle Beach Mermen, Kenny Powers settles into a life of bodyboarding, jet-skiing and hard-partying with his catcher, Shane. A detour to Shelby to attend the one-year birthday of his child reunites Kenny with April.
With the baby in tow, a seething Kenny heads north in search of April. Getting no assistance from Dustin, Maria or Jamie, Kenny tracks down his erstwhile lackey Stevie, currently employed at Ashley Schaeffer's car dealership. Kenny crashes a perverse plantation fete the dealer is throwing in an effort to liberate Stevie.
Pro scout Roy McDaniel arrives in Myrtle Beach to ask Kenny to mentor Ivan Dochenko, a promising young Russian pitching prospect. Stevie lays down the ground rules for his return to Kennyʼs team, while grappling with Shane and Kennyʼs relationship.
Kenny is surprised by unannounced visitors. Desperate to win back control of his team, Kenny decides to stage the 4th of July party to end all 4th of July parties. Meanwhile, a guilt-ridden Stevie struggles with confessing to Maria.