If you’re partial to wild plot lines that feature massive ocean creatures, this one’s for you. Premiering tonight, The Meg features a massive creature that attacks a deep-sea submersible, leaving it disabled and trapping the crew at the bottom of the Pacific Ocean. With time running out, rescue diver Jonas Taylor must save the crew and the ocean itself from an unimaginable threat -- a 75-foot-long prehistoric shark known as the Megalodon.