We take a peek into the dark web, where people can hire hit men, buy poison and hack your computer. Criminals lurk within the dark alleyways of the internet, trying to take advantage of you and those you love. We talk to former FBI special agent Lawrence Wolfenden and take you behind the scenes of true dark web crimes. Learn what went into tracking a father and daughter who sold Xanax disguised as organic fitness pills, and find out how they were caught. Plus uncover the truth behind the Smiley Face Killers.