Sheldon flees back to his mother’s house in Texas, after he finds out that the guys have tampered with his arctic expedition data, which forces the guys to follow him.
Season 2 – Episode 23 – “The Monopolar Expedition”
Penny and Leonard come to terms with their feelings for each other, as Leonard and the guys prepare themselves for a three month long science trip.
Season 2 – Episode 22 – “The Classified Materials Turbulence”
Penny makes a surprising revelation on her second date with Stuart, then things begin to look up for Leonard. Meanwhile, Howard asks for his friends’ help when he discover a critical flaw in his project for NASA.
Season 2 – Episode 21 – “The Vegas Renormalization”
Raj and Leonard take a heartbroken Howard to LA, forcing Sheldon to bunk with Penny.
Season 2 – Episode 20 – “The Hofstadter Isotope”
Howard and Leonard end up going to a bar’s Ladies’ Night.
Season 2 – Episode 19 – “The Dead Hooker Juxtaposition”
A sexy woman moves into the apartment building, which makes Penny feel threatened.
Season 2 – Episode 18 – “The Work Song Nanocluster”
Sheldon takes charge of Penny’s business selling hair products out of her apartment, then it gets out of hand!
Season 2 – Episode 17 – “The Terminator Decoupling”
The guys gets so thrilled when they find out that “Terminator: The Sarah Connor Chronicles Summer Glau” is also aboard their train to San Francisco.
Season 2 – Episode 16 – “The Cushion Saturation”
Sheldon and Penny have a fight about Paintball, while Howard and Leslie have romance.
Season 2 – Episode 15 – “The Maternal Capacitance”
Leonard’s mom (Christine Baranski) visits him at his apartment and she ends up bringing him and Penny closer.







