Livia Treviño

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Larry's therapist accuses him of overstepping.

The staff stages a mock debate; Mac has an epiphany; Lisa goes off-script during an interview; Neal goes under cover.

On the fifth season premiere, Jane tries to decipher Red John's connection with Lorelei Martins (guest star Emmanuelle Chriqui) while the CBI team is forced to partner with an FBI squad -- including Agent Gabe Mancini (guest star Ivan Sergei) and Senior Agent Alexa Schultz (guest star Polly Walker) -- to solve the murder of a hotel employee.

The members of the BAU team search for a suspect who may have witnessed abuse as a child; Kate is worried when her niece and a friend make plans with a boy they met online.

When an assassin targets the government's key witness in an embezzlement case, the team must help the witness make it home alive.