This is a 2021 fantasy action film, called "Devil's Triangle" made by The Asylum. It was directed by Brenden Petrizzo, and stars Fred Williamson, Morgan Bradley and Alyson Gorske. The writers of this are Brendan Haley and Joe Roche. This was filmed at a beach in Orange County in California.
People are travelling in a plane when it's mysteriously shot down into the sea over the Bermuda Triangle. The plane falls into shark infested waters and the survivors manages to swim towards the beach. Horrific events force them to seek safety in a long lost city of Atlantis, ruled by a cruel ruthless king who claimed to be a true descendant of Poseidon. The whole city is cut off from the rest of the world, guarded by a monstrous hydra.
The Atlanteans speak perfect English and this is pointed out by the main characters that are told their other languages includes Phoenician. This was a pretty gruesome film with monsters and heartless Atlantis soldiers. To be honest the film would've been quite interesting if it wasn't so silly.
Do I have any complaints? Yes.
I rate this beastly flick 4/10. Read my spoiler below if you scroll down!
Blood Strawberry
SPOILER: An admiral from WW2 found living in Atlantis must be immortal.