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Davenport and his obnoxious new neighbor agree to settle their differences with a stock car race but the Lab Rats are forced to get in on the action when they learn that his neighbor has enlisted NASCAR pro Joey Logano as his ringer.
When Adam gets his driver's license, Davenport sets out to buy him a new, safe starter vehicle. But when he's left on his own, Adam closes a deal for a monster truck instead. Tasha runs against Principal Perry for PTA president.
Marcus and Douglas lure the Lab Rats into a trap and they learn shocking revelations about their secret origins and creator. Leo partners with Eddy for a surprise attack on Douglas' lair resulting in an epic bionic showdown.