Construction workers in Sweden discover the remains of a prehistoric site. Lying amongst the debris, archaeologists discover the skeletal remains of several seemingly human figures. However, their jaw bones are missing and in their place lies the jaw of ancient deers. Secrets In The Ice series 3 goes to the most remote, cold, and inhospitable places on the planet to reveal great mysteries that were once frozen in time. Merging CGI re-creations, advanced scanning technology and scientific research, the series investigates the curiosities that have been lost for millennia, or never seen before. It explores how and why these secrets ended up in the most desolate and distant corners of the planet and contemplates what may still be concealed in the frozen depths.