In this episode of MythBusters, Jamie and Adam will retrace the steps of the infamous prisoners who escaped from Alcatraz without a trace in 1962. Although presumed drowned, they'll find out if it was possible to survive the tides of the San Francisco Bay in a homemade raft. Can a stud finder prove whether or not human beings have been guinea pigs in mind control experiments... and they'll also answer the age-old question, does a duck's quack echo? They don't just tell the myths, they put them to the test.