Landscape architect Julian Cavendish and his father Richard run the ancestral Cornwall tree nursery. Julian and seven years fiancee weather girl Holly Reynolds remain childless but raise her adolescent twins Leo and Lisa, allegedly fruits of a Spanish holiday one-night stand. At their tenth anniversary dinner, Holly plans to propose, Julian to have a joint kid. Holly and Julian bump there into the twins' biological father Vince Morgan, a star chef. Holly ensures Vince she never wanted to see Vince again. Vince leans about the twins and wants to see them, Holly refuses but Julian invites him, despite father Richard, diagnosed cardiac needing rest six months ago. Family doctor Lauren Williamson promised his late wife never to reveal Julian is also a bastard, while she loves Richard. After the twins find Vince cooler then stepdad Julian, Holly starts falling again for his charms, causing the men to rival.