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Things will get even more complicated next week when Mac finds out that Levi and Imogen are planning on starting a family together, leaving her confused on what to do.

Now a new trailer for Australian viewers shows Levi’s sister Eden discovering the affair after catching him and Mac in the act.

Eden has already unknowingly helped to cover up her brother’s affair, as when Levi told Imogen he was spending time with Eden when he was in fact going to see Mac, Eden went along with the lie – thinking Levi was actually at work.

In scenes that will air in the UK in a few weeks, Eden is furious after seeing the pair kissing, and tells her brother, “Are you kidding me? You cheating liar.”

She berates Levi for sleeping with one of his patients, and when he tells her that his feelings for Mac are real, she reminds him that he has a wife who loves him – leaving him scared that Eden might reveal all to Imogen.

The trailer says that the dramatic fallout from Levi and Mac’s affair will “drive a wedge through The Bay”, and teases that “friends will become enemies”.