Quick recap
Howard spends weeks on the space station, suffers through his Russian crewmates and comes home full of himself, until he learns nobody cares that much. He and Bernadette settle into married life. Leonard and Penny work through jealousy and insecurity, and the relationship matures. Sheldon and Amy inch forward on intimacy, and Stuart becomes a regular in the gang. Raj meets Lucy, a woman as shy as he is. Sheldon meets his childhood hero, Professor Proton. In the finale, Leonard is invited on a four-month North Sea expedition with Stephen Hawking, and Sheldon gets over his jealousy. Lucy breaks up with Raj, and he finds he can now talk to women without drinking.
No spoilersOpens once you mark the title as seen.