Party Boat focuses on Max, who is throwing a 25th birthday party for his best friend Kiley. When Max finds out Kiley's boyfriend Greg plans to propose, he embarks on an adventure to win Kiley's heart and throw his greatest party ever.

In Colt Lake Tennessee, Sam Evans tackles a meth epidemic. He is sidelined on arrival of Bobby Gaines an undercover agent. Despite Evans local ties, Gaines is hailed as hero. Suspicions arise on Gaines which unravels a complex narrative.