EastEnders is set to air a huge showdown between Bianca Jackson and Reiss Colwell, as secrets emerge in Debbie’s murder plot.

Earlier this year, Reiss killed his wife Debbie at her care home, out of desperation as his financial struggles continued to build up.

But he successfully covered up his crime, and his fiancée Sonia has ended up being charged with her murder, despite being oblivious to what Reiss has done.

He hasn’t completely evaded suspicion though, as Debbie’s mum isn’t his biggest fan – and since Bianca’s return last month, she has been convinced that Reiss is responsible for her death.

Bianca tried hard to get the truth out of Reiss, but a few weeks ago he left the Square to go to Peterborough and be closer to where Sonia is in prison.

In scenes that will air next week, Reiss returns to Walford but isn’t pleased to see a still hostile Bianca staying at No.25.

He soon has bigger problems to deal with though, as Teddy tells him that the private investigator he previously hired to help clear Sonia’s name has acquired CCTV from a warehouse near the care home.

Bianca is keen to see the footage, but Reiss manages to keep her away. He heads to the warehouse with Teddy and makes sure he watches the video alone.

Reiss is shocked by what he sees, and so escapes with the damning flash drive. But Teddy is angry when he realises, and he tells Bianca that he has run away.

Furious, Bianca storms over to the house and demands answers from Reiss, but he is terrified of what she might do and locks himself inside.

Reiss can’t hide forever as the next day, Bianca finds him in the café. She once again demands to know the truth, but Reiss lies to her. But Bianca is later thrilled when Teddy hands her another copy of the CCTV.

At The Vic, Reiss lies to Teddy as well, and Teddy ends up admitting that Bianca has another copy of the footage and is about to watch it at home.

As Bonfire Night is celebrated in the Square, Reiss rushes to No.25, where he and Bianca have the ultimate showdown.

Just what unfolds between the pair is yet to be revealed, but the dramatic confrontation will have huge consequences for them both. Will there be fireworks?