Justin and Riley's relationship is put to the test after a spontaneous wedding goes awry and Billie makes a daring decision that could risk a prestigious internship that awaits her in the city. Meanwhile, Maisy reckons with life-changing news about an old enemy: her mother, Mimsy.
Justin returns from living abroad after a break-up with his long-term partner, in the hope of reconnecting with the biological daughter that he gave up for adoption in his teens. His plans to create new memories with his city-loving daughter Billie at the idyllic lake from his childhood go awry when he finds out his father left the family cottage to his 'picture-perfect' stepsister, Maisy-May.