Next week on Coronation Street, Gemma is vindicated as Joseph's mystery illness is finally diagnosed.

Elsewhere, Liam bunks off school after more bullying from Mason, an angry Adam visits Harvey in prison and Bernie arrives back home.

Read on for pictures and spoilers from next week's new episodes!

Monday, January 15 (Episodes 11164 and 11165)

Writer: John Kerr and Steven Fay
Director: Mickey Jones

Damon visits Harvey and warns him that he'll be dead if he pulls any more stunts. Harvey goads his brother about Sarah and Harry, and as an angry Damon is dragged away by guards, Dee-Dee watches the exchange froim across the room.

Damon agrees to join Sarah and her family at the Bistro but Adam storms in and tells her that he doesn't want Damon anywhere near Harry. After being reminded that Harry isn't even his son, an angry Adam leaves and books an appointment to see Harvey in prison.

After Joseph complains of feeling unwell again, Gemma expresses her concerns to Dr Gaddas but Chesney overhears and is furious. Later, Granny Linda arrives.

Max invites Lauren over for tea, but when Sabrina suggests that she bring her boyfriend, Laurens uneasy.

Also: Cassie tells Evelyn that she has donated Terry's money to a dog charity, while a guilty Asha admits to Aadi that she called in on him while he was unconscious.

This hour-long episode airs Monday, January 15 at 8pm on ITV1 and ITVX

Wednesday, January 17 (Episodes 11166 and 11167)

Writer: Ellen Taylor and Cameron McAllister
Director: Emma Lindley

Adam tells Harvey that he has a watertight case for an appeal - but Harvey warns him that if he lets him down, the hitman won't just be dealing with Damon.

Chesney and Linda fuss over a poorly Joseph, but when he suddenly collapses onto the sofa, a panic stricken Chesney tells Linda to call an ambulance. Later, a doctor informs them that they suspect Joseph has Lyme Disease which he contracted while camping.

Liam avoids going to school and reports himself as being sick through the school website. Later, Maria tells Gary that she's had a call from the school as Liam hasn't been in for a week.

Also: Sabrina shares her suspicions about Lauren's "boyfriend" with Max, while Evelyn argues with Cassie about her behaviour with the girls.

This hour-long episode airs Wednesday, January 17 at 8pm on ITV1 and ITVX

Friday, January 19 (Episodes 11168 and 11169)

Writer: Mark Wadlow and John Kerr
Director: Emma Lindley

Bernie arrives back from prison and calls at the Rovers to discover that Dev, Paul and Billy have thrown her a surprise party.

The doctor confirms Joseph's diagnosis of Lyme Disease and asserts that he will make a full recovery. Gemma's elated when she finds out that social services have decided she can come home - but Joseph leaves Gemma and Ches in shock when he announces that he would rather live with her than him as she was the only one who believed he was ill.

Lauren reveals to Max and Sabrina that she's dumped her boyfriend. Later, Max watches on curiously as Daniel puts a comforting hand on Lauren's shoulder.

At school, Mason nicks Liam's phone and humiliates him in front of the other pupils. Liam tries to leave but Mason pins him against a wall, forcing a desperate Liam to set off the fire alarm.

Also: Adam gives Harvey's associate a wad of cash and instructs him to scare Damon off.

This hour-long episode airs Friday, January 19 at 8pm on ITV1 and ITVX