Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
The Angels are charged with finding a pair of missing rings that are encoded with the personal information of members of the Witness Protection Program. As informants are killed, the ladies target a rogue agent who might be responsible.
A civil service worker in Georgia places her family at risk when she agrees to help expose high-level corruption.
