We're into week four of Jericho, with the drama set to continue after the shocks of last week's episode.

Secrets are coming to the surface — but what impact will they have? Can Jericho survive them, or is the viaduct project under threat?

ITV has released a synopsis of tonght's episode.

Here's what to expect in episode four:

Johnny (Hans Matheson) feels increasingly isolated as the truth about his identity spreads like wildfire throughout the town; his family want him gone, his friends shun him because they feel deceived and Coates (Clarke Peters) now sees him as a rival. Even Annie (Jessica Raine) is keeping her distance. After George (Sam Bottomley) saw them together she’s kept away from him in an attempt to reconcile with her son.

Pictured: CLARKE PETERS as Coates and HANS MATHESON as Johnny.

Having failed to persuade George to move home Annie decides to take a different tack. Jericho is now her home plus it’s a place of opportunity. She decides to expand her business and set up a canteen and in doing so she hopes to win her son back.

Pictured: JESSICA RAINE as Annie.

However Annie’s business ambitions creates tension between her and Coates. Bit by bit he has secured supreme control of the town and, as with all the other businesses, demands a cut of Annie’s takings. But she is having none of it and seeks a way to circumvent his ‘taxes’. Despite not enjoying being challenged, there is a determination about Annie that Coates cannot help respect.

Pictured: JEANY SPARK as Isabella Lambton, DANIEL RIGBY as charles Blackwood,MARTINA LAIRD as Epiphany and ELLIOT BARNES-WORRELL as Easter.

Charles (Daniel Rigby) meanwhile stands to lose everything. The money has run out and he is facing financial ruin. Much to Isabella’s (Jeany Speark) frustration, hurt and stubbornness prevent him from even considering Johnny’s offer of help. Charles wants nothing to do with Johnny and is determined to find another solution. On learning that Sorsby (David Westhead), a wealthy Methodist preacher is in town, Charles sets about courting him as a potential investor. Sorsby is keen to invest but on one condition: that Charles clean up the town. In Sorsby’s eyes Jericho is a den of iniquity.

While Charles continues with his unwelcome and naïve attempts to clean up Jericho Annie discovers an ugly and dangerous truth about Charles’ new investor. Realising that the law is not interested in the goings on in a navvy town, Annie takes matters into her own hands but in doing so puts herself in danger.

Pictured: DANIEL RIGBY as Charles Blackwood.

Charles is faced with a conundrum. If he defends Annie he will lose Sorsby as an investor and the viaduct and the town will face certain ruin but the alternative is to leave her to Sorsby’s mercy. Johnny on the other hand knows where his loyalties lie but the question is whether he will get there on time.