This is a standard "looks like a pilot for a series" movie. It is quite Jinneric.
The grandfather, Jehangir Amin (Dominic Rains), thinks the only good Jinn is a dead Jinn and, in an attempt, to recover his girl, the ancient Indian Jehangir upsets a Jinn that just wants the earth back from those clay made humans.
So, the Jinn in retaliation decides to disrupt the lives of all of Jehangir Amin's decedents which just happens to include the unsuspecting Shawn Walker (also Dominic Rains.) but Shawn does not believe he is the toughie that will save the world and future offspring from the Jinn? Or will we have to suffer through a series?
This is more of a Jinn fizzle.