Despite growing tired of the struggles of modern dating, Sammy meets mild-mannered Tom and proposes an unconventional relationship with a time constraint of three weeks before they go their separate ways.

The unexpected revelation of Tom being a father proves to be too big of an obstacle for Sammy, who has never wanted kids, so the pair try to explore other options for their relationship.

Still recovering from the discovery of his ex, Sammy agrees to meet Tom's friends, but an emergency on a wild night out leaves Tom trying to balance his relationship and his parental responsibilities.

Sammy is in full 'adult mode', embracing her new role, but only in theory, not practice. Tom realises he's fallen far out of step with his former friends and tries to forge a new friendship with another dad at school.

It's opening night for Gillian's restaurant and nerves are high, while Raina still doesn't know about Sammy and Tom, and tonight is not the time to find out.

It is nearly Christmas and Sammy and Tom's relationship hangs in the balance. Is a big romantic gesture enough to bring them back together in time for the holidays?