The LEGO ® City Explorers have discovered something really big hidden within the ice which has been preserved for thousands of years. Just when it looks like the Arctic Expedition has been a success, the brave explorers encounter hidden dangers which will make sure it’s a mission they will never forget! Will the explorers see their big find safely transported to LEGO City? Watch to find out what impressive prehistoric animal they’ve found. But wait, those pesky crooks are on the loose and they too have their eyes on the prize - it’s a dramatic race against time. Our heroes need your help to save the day, just remember to keep your cool!