In the last episode of the series they go back to the Permian Era, where one of the soldiers is killed; the dying soldier realises and asks Cutter whether the skeleton was him, and he replies yes.
In the last episode of the series they go back to the Permian Era, and set up a camp. While they are there, one of the soldiers, Captain Tom Ryan, is killed, by a Future Predator; the dying soldier realises and asks Cutter whether the skeleton was him, and he replies yes.