How about this:
Over the course of one night, a meek nobody is taken hostage and forced to help a violent, apathetical criminal on a crime spree, while being chased by the police who believes him to be an accomplice.

How about this ?

When a bank robbery goes wrong and his partner is caught by the police with the bag of money, a naive and desperate young man has 3 hours to retrieve the stolen money in order to save his grandmother’s life, while being chased by the entire police force of his small town.

Alternative:When an old lady falls sick and in desperate need of an operation, her delinquent grandson decides to rob a bank. Complications arise when the robbery goes wrong, leaving him with only 3 hours to retrieve the stolen money while being chased by the entire police force of his small town.

Clearly it is still not phrased properly, but the idea is to have a film about a manhunt and the main character’s goal is to escape somehow, so he decides to leave the country. However, he wants to take his daughter with him, but she is being watched over by his ex-wife and the police.

How would you phrase it ?