Coronation Street spoilers for Thursday's episode of the ITV soap tease Sienna is accused of a crime, while Cassie Plummer takes revenge on Ross Wilkes after his deadly threat06:08, 30 Jul 2026Updated 06:08, 30 Jul 2026Spoilers for tonight's Coronation Street have revealed a revenge twist ahead of an exit, and an accusation.‌There's big moments ahead in the penultimate episode of the week. Cassie Plummer takes action, after Ross Wilkes threatened to kill her on Wednesday.‌But will she take things too far ahead of her exit from the ITV soap next week? The other key storyline unfolding on Thursday is Sienna's mystery behaviour.‌With more to be revealed next week about what's going on with her, she's accused by Nina Lucas of theft in a conversation with Asha Alahan on Thursday. Here is the full synopsis for Thursday's episode on ITV1 and ITVX.Spoilers reveal Cassie takes drastic action. The lines say: "Cassie calls at No.1 and is furious to realise Ross stayed the night there and Tracy has clearly forgiven him. When Ross reveals that he starts his new job today and has to take a drug test, Cassie makes a mental note.‌"Seeing Amy sharing her smoothies with him and filling up his travel mug she has an idea. Mixing some of Tyrone’s tablets into the drink she makes her escape, unaware she has dropped the pill packet."So Cassie takes deadly action, but will she succeed with her plan? Meanwhile, Sienna's behaviour from the night before quickly leaves Nina concerned when she notices her pay packet has gone missing.The lines read: "Sienna apologises to Asha for her quick exit after their date, Nina is suspicious of her excuse of having to take her elderly aunt to Bingo. Arriving home Nina pops her head around Asha door only to find her in bed with Sienna, apologetic Nina rushes to her own room as Sienna leaves.‌"Unable to find her wage packet Nina suggests to a horrified Asha that Sienna must have stolen it." But is Nina right, or is Sienna innocent, with new spoilers appearing to confirm what she's really hiding?There's other big moments on Thursday too, involving Idris Nazir, Abi Franklin, Betsy Swain and Jodie Ramsey. The spoilers reveal: "Adam advises Abi to refuse Idris’s offer of £5k but when Alya interjects and points out that by going to court she could end up with nothing, Abi’s torn.‌"At No.8, Jodie takes out her laptop and creates a new thread on a forum dedicated to mums. Calling herself Shona, she describes herself as a first time mum who went through a traumatic birth."Roy visits Betsy in hospital and helps her with her language skills. Carla tells Betsy that according to the doctor, it’s good news and she’ll be discharged tomorrow. Betsy admits she’s nervous at the thought of going home."Article continues belowCoronation Street airs weeknights at 8:30pm on ITV1 and ITV X. * Follow Mirror Celebs and TV on TikTok, Snapchat , Instagram , Twitter , Facebook , YouTube and Threads.