The Nakayamas have been torn apart; Chester searches for the person he believes can help, by any means necessary; an outbreak in the community forces Amy to act, though she's caught between doing what she's told and doing what's right.

Chester and Luz have reached a turning point in their relationship; Amy must take matters into her own hands as she's tormented by a powerful nemesis; Chester meets a boy who gives him answers.

Henry and Asako look to the past to provide answers to their current turmoil; Chester and Luz grapple with their identities in hopes of saving those who are dearest to them; Amy and Yamato-san struggle to once again assimilate into American life.