Penny Branning’s (Kitty Castledine) plot to destroy dad Jack (Scott Maslen) begins in tomorrow’s episode of EastEnders, and it involves digging up a memory of the past.

Tonight, Penny told Lauren (Jacqueline Jossa) that she’s going to do whatever it takes to ‘ruin’ her dad after he picked Chelsea (Zaraah Abrahams) over her in a family vote.

This happened after Chelsea’s plan to hand herself into the police over the club crush took a turn.

After Chelsea discovered one of the victims was out of his coma, Jack realised the consequences she would’ve faced had now changed.

Jack called a family meeting and revealed that if Chelsea went to the police, the outcome would be greater than Penny. He announced a vote, forcing the likes of Amy (Ellie Dadd) and Lauren to choose between the two characters.

Eventually, Jack had the final call and he picked Chelsea over his own child.

An angry Penny was going to go to the station and report Chelsea herself, but changed her mind when she saw Jordan, and realised he’d be without both of his parents if Chelsea went to prison as well.

With that, she declared to Lauren that she was ready to get revenge on her dad after this huge betrayal.

Coming up, Penny attempts to ruin Jack’s rekindled relationship with Denise by mentioning his affair with Stacey Slater (Lacey Turner).

Just as this happens, Denise walks into the pub and finds Jack hugging the woman he cheated on her with.

Jack’s day then goes from bad to worse as later, Tommy (Sonny Kendall) films him punching Harry Mitchell (Elijah Holloway) in the face.

It’s a dangerous mistake – but what will this moment of madness cost Jack?