After having a close call with a sinkhole on the interstate, Boyd becomes scared to leave the house; Mike and Ryan disagree over how to ease Boyd’s anxiety.

Max and Caroline sign up to be “booth babes” in order to get into a huge gaming convention for free. Once inside, they’re shocked to see that Han’s friend has…

When they’re invited to present at a physics conference, Sheldon’s reluctance to share the credit leads to a tiff between him and Leonard, and Penny’s intervention only exacerbates the situation.