Akshay Kumar: Aarav
Owner of Blue Shipping & Fisheries - a shipping company. Aarav is easily one of the richest and the most eligible bachelors in the Bahamas.
Always ready for a dare, he hates the thought of losing. Because, for him, the best and most intoxicating high in the world is RISK!
He constantly badgers Sagar to search for the lost treasure. But is it out of insatiable greed, or some ulterior motive.
Sanjay Dutt: Sagar
Aarav's closest friend and employee. Sagar is a straight-forward, simple man with a troubled past and a modest future. He's not ambitious - either for money or fame - and content to lead a simple life. But he has a haunted past and his redemption lies in facing his demons, that lie hundreds of feet underwater.
Zayed Khan: Sam
With great confidence, comes a bit of arrogance. Self- assured Sam, Sagar's estranged brother, is an urban named with a singular driving passion - bikes. His accidental involvement with a mafia drug lord, forces him to flee Bangkok and find asylum in his ancestral home, in the Bahamas.
Lara Dutta: Mona
Mona is a marine enthusiast. She is Sagar's confidante and love. Her effervescence and compassion, compliment Sagar's stoicism, perfectly.
Blue is set in the breath taking sun soaked white sand beaches of Bahamas. Sagar (Sanjay Dutt) is an excellent deep sea diver who dreams of getting his own new boat someday while his friend Aarav (Akshay Kumar) is a rich arrogant businessman, whose ego is much larger than the big boats that he owns. The conflict between these two sparring friends is the conflict between the rich and the poor, between the moral and the immoral, between greed and honour...
Caught in between these two is Sagar's brother Sam (Zayed Khan) who has inadvertently managed to rankle a whole gang of mafia men. Now, these dangerous men are after him and Sagar is the only one who can help him. But to save his brother, Sagar has to wrestle with the ghost of his dead father... The only other person who is privy to Sagar's dilemma is Mona (Lara Dutta), his girlfriend. She is afraid that the secret that lies within the restless waters could destroy all their lives.
The adrenaline rush that comes with Blue accelerates as each new chapter unfolds. It begins with a bare handed skirmish with sharks, moves into deep sea diving, reveals the secret of a forbidden treasure and a buried past, flirts with death at the hands of the mafia and goes straight into the treacherous waters again.
A team of the best underwater technicians from around the world - divers, cameramen, and stunt directors are working on the making of Blue to make it as real and as palpable as the medium of cinema can allow, so that the viewer feels engulfed in the entire experience.
Blue - the color of the sky and the color of the seas...Underneath the shimmering beautiful inviting waters of the sea, lurks a secret which threatens to destroy one friend and save the other friend.