<p>The trailer for O.M — OPERATION MOLE Chapter 1: Udhiram - The Blood Wood, landed Thursday evening. Two minutes forty seconds of red sandalwood forests, bloodied axes and three heavyweights who have never shared a frame before.</p><p>Dhanush is a woodcutter dragged into the syndicate. Sai Pallavi, fresh off Sita Mata duties in Ramayana, plays Nithya Reddy, the CBI officer running the sting.

Mammootty appears as a politician with grey edges, controlling the trade from the shadows. Their first on-screen collision.</p><p>Naseeruddin Shah shows up in what looks like a cameo. Sreeleela plays Dhanush's wife, grounded and unglamorous.</p><p>Rajkumar Periasamy directs. His last film was Amaran.

Sai Abhyankar handles music. Wunderbar Films and RTake Studios produce.</p><p>The project is built as a two-parter. Chapter 1 was meant for October. The makers shifted it to avoid Rajinikanth's Jailer 2 and Suriya's Scene, both eyeing the same corridor.

New date: November 20, worldwide.</p><p>That leaves five weeks. The franchise lives or dies on opening weekend.</p>