Sea Monsters (Season 1)

Sea Monsters (2003) is a BBC documentary miniseries you can watch online on iFILM. Zoologist Nigel Marven uses a time machine to dive into prehistoric oceans and swim alongside the deadliest predators the planet ever produced.

Three episodes, three trips into different geological ages. Marven sails his yacht across ancient seas with a BBC crew, facing giant marine reptiles, monstrous sharks and six-ton hunters that make a great white look tame. His one rule says it all: no matter how rough things get on land, never get in the water.

This is a spin-off of the landmark Walking with Dinosaurs franchise, built on the same cutting-edge CGI and animatronics. Marven doesn't narrate from a safe distance — he wades right up to the jaws, and the tension lands better than any script could. A solid pick for anyone who loves palaeontology and proper BBC science programming. Stream Sea Monsters (2003) online on iFILM.