Lake Placid: Legacy (2018)

Legacy finds the team of young explorers out to reveal the secrets of an area removed from modern-day maps and hidden behind electric fences. However, once they reach the center of the lake, they discover an island that harbors an abandoned facility with a horrific legacy: the island is home to a deadly predator eager to feast on those dumb enough to ignore the warnings. But before they can turn back, our hapless heroes get dragged into a battle for their lives — and will need to work together if they hope to survive.