Plot: Jamie and Adam take on Newton's third law of motion thanks to an eagle-eyed physicist fan who spotted a flaw in a previous episode's experiment. The team sets out to test the theory of two cars crashing into one another or another inanimate object at the same speeds. In a cacophony of car carnage, the MythBusters drive this myth up the wall, not once but 3 times, as they crash, bash, and smash to put the Hyneman Hypothesis to the ultimate test. Meanwhile Kari, Grant and Tory are back in the school of hard knocks, as they retest 'Knock your Socks Off.' The last time they tested this myth, nothing they tried could separate Buster's toasty socks from his feet and the myth was down for the count. Or was it? Fans say 'no way' with hundreds of emails telling the team exactly what was wrong (wrong socks, wrong legs, incorrect punch, etc.). So, armed with an arsenal of suggestions, the team puts Buster to the test again.