The story is about four good-for-nothing friends: Boman Contractor (Aashish Chaudhary), Roy (Riteish Deshmukh), Aditya ‘Adi’ Srivastav (Arshad Warsi), and his dim witted younger brother Manav (Javed Jaffrey). The story starts when the four are kicked out of their house by their landlady (Suhasini Mulay) for not paying their rents, for stealing her pizza, and for lying to her that Adi has a sister who has cancer and that they needed money for her treatment. Desperate to earn money, they devise up a plan. Adi tells Manav to steal a painting of a ‘horse eating grass’ from the house. They decide to sell it to the son of the late Businessman Dwiwedi. But Manav accidentally picks up a blank painting not knowing the reality. They humorously sell the painting for Rs.20,000 to him after knowing that Manav has picked up the wrong painting.
They then pick up the original painting with the intention to sell it to Mr. Agarwal not knowing that he has been murdered. The case is handled by Inspector Kulkarni (Murli Sharma). He learns that before Mr. Agrawal was murdered he was speaking on the phone to somebody and he mentioned the words ‘horse’ and ‘grass’. He interprets these words to be some code language. Unfortunately the four arrive at Agrawal’s residence. Kulkarni demands to see the painting. Seeing the horse and grass he immediately arrests them.
While travelling on the highway Kulkarni drops the four on the road after realising that they are innocent. The four are overjoyed when suddenly they witness a car accident. The car belongs to the Don Bose (Prem Chopra). In his last words he tells them that he has hidden a treasure of 10 Crores in the St. Sebastian garden in Goa under a big ‘W’. He tells them to divide the money equally among themselves. They come across Inspector Kabir Nayak (Sanjay Dutt) who has been trying to arrest Bose for the past ten years. He tries to extract information from the four but in vain, they escape from there and decide to travel to Goa. Desperate for his promotion, Kabir is determined to capture the four.
All four friends steal Boman’s car which belongs to his father Nari (Asrani), who loves his car more than his son and threw his son out after he damaged his car. The friends manage to steal their car but not before hitting Nari on the head and making him unconscious. Unfortunately, Roy loses control of the car in a forest and hits it against a tree breaking both headlights. They decide to spend the night in the car.
The next day Kabir is transferred to Yavatmal for failing to capture Bose. Furious he walks towards his table where Nari is waiting for him to file a complaint against his son for stealing his car. He gives Kabir the photos of Boman and his car. Meanwhile all four come across a broken bridge which is the only way through the forest. They decide to jump the car but Boman is reluctant to do so. Unfortunately they manage to jump the car on the other side but it blasts off.