We left the final series with Hannah and Nathan attempting to divide up their twenty years together, and trying to navigate their way through a "good divorce", questioning whether that is even possible.

Two years on, formidable family lawyer Hannah Defoe and her family are back and have gathered for a beautiful wedding at a magnificent vineyard, nestled in Catalonia's wine region. Set across one sun soaked weekend, The Split will encompass break-ups, reunions and like all good weddings, plenty of romance. As the sun rises over the glorious Spanish countryside, Hannah is compelled to banish the ghosts of her past and open herself up to the possibility of love again. Can she find the courage to take the leap into a new future?

Explosive secrets come to light that threaten to derail the wedding, unravel a marriage of 30 years, and encourage Hannah to finally face her fears and commit to something new.

With Kate and Nathan's relationship on the rocks Hannah makes a decision which shapes all their futures.

Rose grapples with James' absence at the family camping trip. Ruth learns of Nina and Tyler's affair, and the extent of Tyler's deceit is revealed.

Hannah allows herself to dream of a life elsewhere with Christie, whilst Nathan starts to doubt his relationship with Kate. Ruth breaks some devastating news to Zander.

Tensions rise as Hannah and Nathan struggle to disentangle their lives. Christie arrives in London and Rose has clear out.

Hannah's relationship with Nathan unravels when he drops a bombshell, and Rose struggles to cope with her grief.

Hannah and Nathan are in the final stages of negotiating their divorce, but when it becomes clear Nathan has met someone else, the amicable separation takes a turn for the worse.