When Billie’s two crushes show up at the murder cabin, she enlists Justin in a game of keep-away that ends with a broken heart. Meanwhile, Maisy plans a celebrity soirée for cottagers to remind them why they need a Boathouse.
Maisy uses the anniversary of Derrick’s death to get Mimsy to confess to burning down the Boathouse with Justin’s help. Desperate for any opportunity to avoid her sibling love triangle, Billie agrees to go to Derrick’s anniversary dinner in exchange for Justin promising to get her a job from Maisy.
Justin crashes Jayne’s Aqua Spin class to interrogate arson suspects. Billie is torn between her personal and professional life, and Maisy uses a “spa day” to extract medical samples from Mimsy.
An opportunity arises for Justin to redeem himself when he discovers the Boathouse fire may have been the result of foul play. Meanwhile, Billie’s eco-ideals are challenged by a magnetic nemesis and Maisy tries to prove her mother is lying about her imminent death.
After returning from abroad after a break-up with his long-term partner, Justin plans to connect with his teenage daughter he gave up for adoption. His plans to make new memories with his daughter at the family cottage go awry when he discovers his parents left it to his picture-perfect step-sister, Maisy-May.