Summary: <br> Stargate Universe alum Louis Ferreira guest stars as a traveler in need of McLaren's team's help on a mission gone awry. Rick Hall forces McLaren and the rest of the team to examine the protocols they've been tasked to uphold during their mission to change the past to save the future. In the end, McLaren's decision could have far reaching effects.<br> Episode Grade: A<br> <br>
