• .The Justice League Recombination (episode 11) - The guys enter a costume contest with Penny's new boyfriend.

• . The Alien Parasite Hypothesis (episode 10) - Amy realizes she has feelings for Penny's ex; Koothrappali and Wolowitz try to prove who would be a better superhero.

• .The Boyfriend Complexity (episode 9) - Penny asks Leonard to lie to her father; Howard, Raj and Bernadette pull an all-nighter at a telescope.

• . The Desperation Emanation (episode 5)- Leonard and Sheldon goofiness and intelligence are, in some weird social skills by Penny and bait to the surface.

• . The Hot Troll Deviation (episode 4) - An embarrassing secret of Wolowitz's is revealed; Raj and Sheldon get into a war at work.

• The Zazzy Substitution (episode 3) - When Sheldon searches for an alternative to human companionship, the guys become concerned.