"Ascension" delivers a heart-pounding two-parter filled with a new set of challenges to the crews of Voyager and the Protostar. The lives of Chakotay, Janeway, and the cadets are endangered when a forgotten enemy suddenly resurfaces with a surprising new power-draining weapon. Will Gwyn and Dal's quest to close the time loop be achieved or will the Loom return to fix things their way?