After being enticed on a cheap luxury holiday to a tropical island paradise, four couples suddenly find themselves thrust into intensive couples therapy as part of the package!
Couples Dave (Vince Vaughn) and Ronnie (Malin Akerman), Joey (Jon Favreau) and Lucy (Kristin Davis), and recently divorced Shane (Faizon Love) with his new 'twenty-something' girlfriend Trudy (Kali Hawk) all embark on some serious soul searching that they really are not prepared for.
As they endure the resort owner Marcel's (Jean Reno) odd counselling methods, including swimming with sharks and intimate yoga sessions with a very over amorous instructor. Soon they are facing up to their fears and each other as they make a hilarious last ditch attempt to save their marriages and what should have been the holiday of a lifetime!