Years after their breakup, Jessie and Tom come face to face unexpectedly at best friend Kate's wedding as she ties the knot with Ian. The initially awkward meeting finds the two former lovers wondering if there is a lingering spark.

Tom's engagement party with new partner puts pressure on Kate as she has to decide where her loyalties lie. Jessie distracts herself on a date with Liam and the pair bond.

Jessie and Tom's connection sparks up again. Jessie has to decide if pursuing an old flame is a good idea, while Cath the agent gives her a harsh grilling.

Jessie and her friends enjoy a weekend away in the countryside, but tension rises in the group when Ian blurts out a secret that Jessie would rather not have heard.

Tom prepares for his wedding, and while his house is taken over by wedding staff, he comes clean about a secret he's been hiding from fiancée Clem. Meanwhile, Ian tries to make amends with Jessie, who is having a crisis of confidence when her 33rd birthday celebrations don't go as planned.

Kate is in labour while Ian has a meltdown. Tom takes the opportunity to smooth things over with Jessie. Is it too late for the former lovers to reconnect years after the breakup?