Complex sentence: His son Ajay is a cop in Mumbai who fights against the mafia and is on a mission to apprehend Mafia don Nayak who is involved in illegal drug trade, extortion and arms trafficking.
Split into simpler sentences: His son Ajay is a cop in Mumbai who fights against the mafia. He is on a mission to apprehend Mafia don Nayak who is involved in illegal drug trade, extortion and arms trafficking.