So, if Bill Manville and Gilbert Manter’s eyes had been deceiving them, and the footprints in the sand weren’t left by a sea monster ... film writer and documentary filmmaker.

One hundred and fifty million years ago, dinosaurs ruled the land, but the oceans were dominated by a mysterious sea monster. Meet the pliosaur, the Tyrannosaurus rex of the seas! Now, a giant ...

I knelt down to examine it, everything was still glistening with sea water from the recently receding tide. I turned it over and over examining all the details. I tried to lift it but it was so heavy.

After a mystery sea monster washes up on a UK beach, Jeremy Wade sets off on a journey from London to Greenland, via Norway, to unmask this beast and find out if it poses any threat to humans.