Swimming in the Gene Pool

Grace tells her sons Jake and Alex that she's engaged, and both boys are happy for her until they find out that she has never actually divorced their father. Things become complicated when Grace meets with her ex-husband, as Alex is adamant he never wants to see his father again but Jake's curiosity is restless. Tom is recovering in hospital when he gets a visit from his granddaughter, Bree, but Coby is less than thrilled with the arrival of his feisty sister. Tom encourages them to make amends, but Coby struggles to mend bridges with his sister.