Optimus had sent you on a mission to the Arctic with him to scan for energon, although you both were ground-bridged a distance away from the actual point, which meant that you two had to walk a distance
Unfortunately, the further you guys were into the frosty wasteland, the more clouded the locater got, which was the same for the comms, and you two decided to head back to base
"Y/N, this snowstorm seems just to be getting worse the closer we get to this energon deposit. Let's start heading back to base."
You both then started to head the other direction and Optimus had then tried to contact Ratchet to get a ground bridge while you, not knowing that he was stayed behind, kept walking through the snow until you thought that you began to hear a cracking sound from underneath you and swiped the snow away with your pede and revealed a dark blue lake of thick ice underneath you and it was slowly starting to break while Prime was still struggling to contact Ratchet about a ground-bridge, unknowing of your situation...