Larissa gives Carrie some harsh advice about her relationship with Sebastian. When Harlan asks Tom to work overnight on a top-secret case, Dorrit decides to throw an impromptu get-together, which quickly spirals out of control. Meanwhile, Mouse and Donna get surprisingly close and Sebastian makes a hasty decision after another fight with his parents.

Walt and Bennet get some devastating news that forever changes their future. Sebastian gets an exciting work opportunity, causing him to bail on Carrie on Valentine’s Day, much to her chagrin. When Maggie accidentally enlists in the army, a surprising duo comes to her rescue. Elsewhere, Tom uses some reverse psychology to encourage Dorrit to start dating again.

When Bennet starts slacking at work, Carrie tries to cover for him. However, when Larissa finds out, things backfire big time for them both. Samantha makes an uncharacteristic decision about her latest fling. Sebastian’s father asks him for a favor that could change Sebastian’s future forever. Meanwhile, Tom is hoodwinked by another – beautiful – lawyer when negotiating a deal, and is advised by the person he least expects.