Kireedam
A sincere man wishes to fulfill his father's dream that he follows in his footsteps and becomes a police officer. However, when his father is punished for his honesty and transferred to an area that is ruled with an iron fist by a heartless gangster, the young man must take the law into his own hands to protect his father.
Starring Ajith Kumar, Trisha Krishnan, Ajay, Rajkiran, Vivek, Saranya Ponvannan, Santhanam, Cochin Haneefa, M. S. Bhaskar, Manobala
Watch "Kireedam" on Amazon Prime released in 2007. It's a drama and action & adventure movie, and has a rating of 6.6 out of 10 from Imdb which is usually fine for this kind of movie.