Bam Margera seemingly fell off the wagon after bouncing from a treatment center … video shows him partying with a group of men while police and his family were desperately looking for him.

After Bam vanished from a Florida rehab facility on June 25th, we’re told he met up with some folks at a sports bar Saturday in Pompano Beach and had a couple alcoholic drinks.

One of the people who say they were hanging with Bam tells us the “Jackass” star then asked to be taken to a hospital for an injured wrist, and the person says he drove Bam to the hospital and took a pic of him on a hospital bed on Bam’s orders.

We’re told Bam later left the hospital and went to a strip club in Pompano Beach … though Bam told people around him to keep the dancers away from him because he loves his wife and kid.

After the strip club, we’re told Bam went to a friend’s house, and you can see in our video, he appears to lose consciousness before coming back around. A couple hours later, Bam was picked up by another friend.