Not much information was provided with this video other than it was uploaded by YouTube user MrFricki123 and was filmed at Kuredu Island Resort, Maldives. The man seen in the video frees what appears to be a juvenile blacktip reef shark (Carcharhinus melanopterus) that had become trapped in a small plastic bag. Someone can be heard saying “plastic is everywhere” off-camera (presumably the man who freed the small shark).
Kudos to the gentleman in the video for rescuing the young shark.