SIDEWALKS host Lori Rosales talks to actors Christie Burke, Richard Fleeshman and Reece Ritchie, the lead stars of SyFy's "The Ark." They talk about the science fiction series -- created by showrunners by Dean Devlin (films "Stargate," "Independence Day") and Jonathan Glassner ("Stargate SG-1," "The Outpost") -- and working together in Serbia.