Neighbours spoilers: Punch-up between Mark Brennan and Shaun Watkins?

Things quickly get heated when Mark comes face-to-face with his estranged wife Elly's baby daddy Shaun on Ramsay Street. Uh-oh...

Elly Conway is horrified when she finds out it was Finn Kelly who asked his brother Shaun Watkins to return to Erinsborough. He could have at least warned her!

But the question is, what does Shaun want? After all, when he first found out Elly was pregnant following their one-night stand, he made it clear he wasn't interested in becoming involved with Elly and their baby.

So how will Elly react when she discovers Shaun may have had a change of heart, now he knows about her marriage break-up?

Unfortunately, it's not long until Elly's estranged husband Mark Brennan discovers Shaun is back in Erinsborough...

Wanting to apologise, Shaun tries to tell Mark his version of events. But when Mark finds out Finn also knew about Elly's baby bombshell before he did, he snaps and a scuffle starts between Mark and the two brothers...

Neighbours, Mark Brennan, Finn Kelly, Shaun Watkins — Mark snaps over the baby bombshell... (Picture: Channel 5)

Elsewhere in Erinsborough, Gary Canning is still anxiously waiting for fiancee Amy Williams to make a decision about their future together, after their doomed surprise wedding.

Is the engagement still on? Or has everything changed for Amy now she knows her ex-boyfriend and Gary's son Kyle is still in love with her?

Neighbours continues weekdays at 1:45pm and 5:30pm on Channel 5