Second Sons is Canada's biggest white nationalist group and, for the first time, it sent members south of the border to train. CBC's visual investigations team tracks Second Sons' journey to the U.S. where members met with white supremacist fight clubs and founder of the global "active club" movement Robert Rundo — on supervised release for violent offences — and attended an event hosted by notorious group Patriot Front. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For