In the all-new episode of The Big Bang Theory entitled "The Locomotion Reverberation," Leonard gives Sheldon the gift of a lifetime in the form of the ultimate train experience!
Yep, the gang's resident locomotive expert is finally getting the holiday he's always dreamed of—and we have an exclusive sneak peek at the theoretical physicist's steamy new look.
(As if you needed another reason to tune in to tonight's new episode.)
Be sure to check out "The Locomotion Reverberation," airing tonight at 8/7c on CBS and CBS All Access, for even more train-centric fun!
Watch The Big Bang Theory on Thursdays at 8/7c on CBS and CBS All Access.