It's going to be a crazy week in "General Hospital" with investigations happening left and right. Here are the spoilers for September 1 to 5 from Celeb Dirty Laundry:

Nathan's Father

Nathan's father has been a mystery in the show for weeks. Many fans speculate that Victor Cassadine is Nathan's father since Liesl Obrecht was revealed to be his mother. This week, fans can find out the truth.

Patrick and Sam's investigation

Sabrina is back in Port Charles and Patrick told her every information she has on the accident. Sabrina is furious when she learns that someone paid Rafe to run them off the road. Sabrina wants to know who the mastermind is.

Patrick and Sam are still adamant in investigating the culprit of the accident. They want to help Sabrina get revenge on the killer. According to spoilers, their investigation might just lead them back to Crichton-Clark.

Carly and Sonny

On Thursday, things between Carly and Sonny heats up. For some reason, Carly can't find herself pulling away from Sonny's advances. Even if she knows that she is with Franco and wants to be with him, she still always gives in to Sonny.

Maxie and Lulu

This week, Maxie and Lulu are still under the hands of evil and crazy Levi. Dante and Nathan are still trying to rescue them, but it seems like they may have underestimated Levi.

Is Victor really Nathan's father? Will Patrick and Sam find out the culprit of the accident? Will Sabrina get her sweet revenge? Will Carly choose Sonny over Franco? And what will evil Levi do with Maxie and Lulu?

Don't miss this weeks' episodes of "General Hospital" on ABC at 2 p.m. on weekdays.