Sean, Patrick, and Sandra are the Three Musketeers. They do everything together, including work at a successful gym called Boot Camp. Sandra Patterson, is the resident nutritionist, but trainers Sean and Patrick want more than a platonic relationship. Despite Sandra's attempts to keep the rumors at bay, everyone at work thinks they're doing more than working on the gym equipment. It doesn't help that her private ménage a trois fantasies often star her best friends. When Sean's uncle asks him to check out a cabin near the Rockies, the remote location provides the threesome with the perfect opportunity to test how far they're willing to go to be together. Can three weeks of passion lead to unconventional love or will cabin fever ruin their friendship forever?