A man who has lost it all and doesn't mind a bit! He somehow sees light at the end of the tunnel only to find an avalanche caving it.

Suryaveer Singh (Amitabh Bachchan) was a former black commando in the army. After fighting many a battles, they have a toll on his mental health so he decides to quit and takes to drinking making it his new companion.

His friend Shekhar (Arjun Rampal) who used to work with him invites Suryaveer to Bangkok where he owns a security firm. In order to get his life back into order Shekhar gives Suryaveer a job as a bodyguard. Suryaveer accepts only to find out that it is to protect an 8 year old girl Anamika (Baby Rucha Vaidya). As he is not good with children, he is traumatized again. But somehow slowly and steadily he forms a bond with her as she gives his life new meaning.

But his life takes a traumatic turn once again when Anamika is kidnapped and Suryaveer once again is pushed into his past. Only this time he decides to get the girl back. He is on a new mission now and he is not going to lose. With his commando expertise and war experience he tries to find out where the little girl is only to unleash another shocking and horrifying secret.

Directed by Apoorva Lakhia, Ek Ajnabee promises to keep you on the edge of your seats with a stupendous performance from Amitabh Bachchan and Arjun Rampal.

The supporting cast comprises of Perizaad Zorabian, Kelly Dorjee, Dayashankar Pandey, Akhilendra Mishra, Vikram Chatwal, Aditya Lakhia, Denzil Smith and Raj Zutshi. Abhishek Bachchan and Lara Dutta will appear in cameos in the film while Sanjay Dutt is roped in for an item number.