Hollyoaks love cheats Mac Nightingale and Lisa Loveday will be ones to watch next week as their secret affair leads to a shocking twist.

Mac (David Easter) and Lisa (Rachel Adedeji) slept together for the first time late last year, and they've since started enjoying a full-on fling as they just can't resist temptation.

But could the truth come out sooner than we all expected? It's a real possibility next week, with show bosses teasing that they'll be involved in a shock accident.

It all starts in tonight's E4 first look episode, which sees Mac's son Nathan desperately trying to get his own relationship with Lisa back on track. If only he knew!

Lisa stands firm by ordering Nathan to cut ties with "third wheel" Cleo McQueen (slightly hypocritical given what she's up to herself!), but he refuses to be bossed around by her.

Nathan has booked a hotel as a romantic treat for Lisa on her birthday, but he's sick of her diva tantrums and tells her to go on her own.

Coming up with a much better idea, Lisa jumps into Mac's camper van and they drive off together.

It all starts off well enough, but Lisa freaks out when Mac declares his love for her when they're snuggled up together in the van.

When Lisa finally feels guilty over her treatment of Nathan, she orders Mac to take her home... but it's at this point that they find themselves involved in a horror accident which could have consequences for other villagers too.

Could this be the moment their fling gets exposed to all?

Digital Spy