Just when you thought Stella's house couldn't possibly get more crowded, Michael decides to base the office for his go-it-alone solicitors' firm there.

Stella worries about Michael, who is acting out of character, while Aunty Brenda and the newly flush Dai lock horns during a fraught business meeting.

Katie's small birthday lunch spirals out of control, culminating in a shock revelation for Stella. Pressure mounts on Luke to find some extra cash, too.

Stella is ready to make amends with Michael, until, that is, she uncovers more secrets and lies. Elsewhere in Pontyberry, Dai Davies hits the campaign trail.

While Stella struggles to move on from Michael, Celia receives a blast from the past. Aunty Brenda's political campaign hits an unexpected snag, too.

Stella is overjoyed when sister-in-law and best friend Paula makes a surprise return to Pontyberry. Elsewhere, Big Alan worries about Celia and ex-husband Dan.

It is election day and Aunty Brenda can taste victory until a slimy new rival decides to enter the race. Ben and Lily go on a disastrous date.

Arrangements for Alan and Celia's wedding are in full flow as friends and family come together for their stag and hen dos. Zoe learns about Luke's debts.

Big Alan and Celia nail their fancy dress theme as they tie the knot in front of their nearest and dearest. Guest appearance by Gino D'Acampo as himself.