Peter Banifaz

When an affluent school teacher is found dead in an abandoned bookstore, the teachers and students at her school become suspects in the case. Meanwhile, Brennan’s publisher encourages her to join Twitter to help grow her fan base, and “squintern” Jessica Warren teaches Brennan some tricks to master the Twitter-verse, skills Brennan enthusiastically puts to use.

The team travels to Morocco in the hope of finding a retired couple from Idaho who were abducted on a cruise.

Another couple upstages Greg and Jen's parental skills when they take Lark on her first aeroplane trip. Joan and John try to smuggle their dog onto the plane. Matt and Colleen miss their flights.