Journey 80 million years into the past, when the great inland sea covering North America teemed with some of the most astonishing creatures to ever rule the planet. This immersive documentary, directed by Sean MacLeod Phillips, brings the prehistoric deep to life through stunning animation, following the perilous life cycle of a young Dolichorhynchops as she navigates the treacherous waters for the first time. Guided by narration and featuring vocal performances from actors including Jerry Hoffman and Jennifer Aguilar, the film transforms scientific discovery into a gripping adventure. The young "Dolly" must evade a gallery of ancient oceanic giants, from the colossal fish Xiphactinus to the formidable shark Squalicorax and the immense Tylosaurus, in a constant struggle for survival. Blending paleontology with cinematic spectacle, Sea Monsters: A Prehistoric Adventure creates a tense and wondrous atmosphere, revealing the dramatic, often unseen stories written in the fossil record beneath our feet.