After months working on an oil rig in the Atlantic Ocean, engineer Jo Blaine can't wait to get home. But when she walks through her front door to find an unexpected man in her house, she's tempted to head straight back out to sea. Stephen Hardy convinces Jo to let him stay and by the time she leaves for her next shift, they're both eagerly anticipating her return.

But balancing family and friends with a new relationship when you're never around is tricky, and Jo is also keeping secrets about her past. After a lifetime of taking care of herself, Jo isn't used to sharing her problems – especially when they involve her messy family history. Picking up the pieces every time she comes home is getting harder, and Jo begins to wonder if a fly-in fly-out lifestyle is really worth it . . .