Murdoch and his colleagues must protect the safety of author Mark Twain after he stirs up controversy during a speaking engagement in Toronto.

When "Star Trek" first aired in 1966, it expanded the viewers' imaginations about what was possible in their lifetimes. Today, many of the space-age technologies displayed on the show, like space shuttles, cell phones, and desktop computers, have already gone from science fiction to science fact. Other innovations, like warp drive, teleportation, and medical tricorders are actively in development. Join us as we celebrate the 50th Anniversary of "Star Trek" - a show that continues to inform, enrich, and inspire.