Ep 14. The Troll Manifestation

Penny becomes the target of a nasty online troll, and the gang rallies around her to try to discover the identity of the culprit. Sheldon, of course, has some unorthodox ideas about how to handle the situation, which only makes things worse. Meanwhile, Howard and Raj offer to help Stuart with his struggling comic book store, leading to some unexpected complications and misunderstandings. As tensions rise and tempers flare, the gang must work together to fend off the troll and restore peace to their little corner of Pasadena. Along the way, they discover some surprising truths about themselves and each other, and learn important lessons about the power of friendship and forgiveness. With its trademark humor, heart, and wit, "The Troll Manifestation" is a must-see episode for fans of The Big Bang Theory.