It's easier with two.

High school sweethearts Sarah and Caleb Linwood have always been inseparable. For the past seventeen years, they have supported each other through everything life has thrown at them.

But Sarah is starting to wonder: who is she without her other half? When she decides to organise a charity event in memory of her late mother, she wants nothing more than to prove she can succeed without Caleb's help. However, when the event goes wrong and Caleb steps in to save the day, it pushes things to breaking point.

The ensuing fallout exposes a decade of resentment and doubt. Are they really the same people they were when they married at nineteen? Should they even be together?

Desperate to save what they once had, Sarah and Caleb join a group on a grueling week-long hiking trip designed to help couples navigate difficult times. Can they resolve their issues and find their way back to where they started?