General Hospital
Sonny (Maurice Benard) is unaware of Dex’s (Evan Hofer) ulterior motive on “General Hospital.” The actors are pictured in a scene from a previous episode. ABC/Craig Sjodin

Sonny is determined to get answers out of Dex following the latest attack from the hook killer, but on the Thursday, Sept. 29 episode of "General Hospital," Michael will try to convince his father to free Dex.

In the ABC promo video, Sonny (Maurice Benard) asks Michael (Chad Duell) why he thinks Dex (Evan Hofer) is innocent. "GH" spoilers reveal Michael makes a case for Dex.

In the previous episode, another person who was close to Sonny was stabbed by the hook killer, and he began to suspect Dex was responsible for the attacks.

Sonny tied Dex up and questioned why Dex was eager to work for him. Although Dex said he admired the way people respected Sonny and wanted to learn from him, Sonny didn't believe him.

Viewers are aware Dex secretly works for Michael, who is determined to destroy Sonny's empire. After failing to get any believable responses from Dex, Sonny brought in a man who specializes in getting answers through torture.

Once Michael realized his father had Dex, he rushed over to try to save him. It appears Michael will try to convince Sonny that Dex is innocent, but Sonny will want to know why Michael is so interested in a man he barely knows.

Will Michael convince Sonny that Dex is innocent, or will Michael have to admit his plan for revenge to save Dex's life?

Elsewhere in the promo video for the ABC soap opera, Jordan (Tanisha Harper) tells Portia (Brook Kerr) that keeping the paternity secret from Curtis (Donnell Turner) will come back to haunt her one day. "General Hospital" spoilers reveal Portia confronts Jordan.

In the previous, Jordan accused Portia of hiding the fact that Curtis was Trina's (Tabyana Ali) biological father. Rather than refute the claims, Portia accused Jordan of still having feelings for Curtis.

It appears Jordan will want a direct answer from Portia and will remind her that she can't marry Curtis and continue to hide a life-changing secret from him

However, Portia will push for answers about why Jordan didn't file her divorce papers. Will the heated exchange force Portia and Jordan to tell the truth?

Other "GH" spoilers tease Sam (Kelly Monaco) has questions for Spinelli (Bradford Anderson), Josslyn (Eden McCoy) and Dante (Dominic Zamprogna) brainstorm, Austin (Roger Howarth) meets with Mason (Nathanyael Grey), and Maxie (Kirsten Storms) urges Cody (Josh Kelly) to keep an open mind.

"General Hospital" airs weekdays at 3 p.m. ET on ABC.