Jimmy refuses to have Chuck committed to psychiatric care but takes temporary guardianship and allows an MRI and a CAT scan to determine whether he suffered head or neck injuries.
He positions himself on a ridge overlooking a desert site where Hector and his crew are preparing to execute Ximenez Lecerda,[b] but Mike is unable to get a clear shot because Nacho Varga is in the way.
Chuck claims that he needs protection from ambient electromagnetic waves, which he blames for the transposing error on the Mesa Verde documents, and adds that he needs to retire as he is mentally unfit.
Series co-creator Vince Gilligan revealed that he wanted to have Breaking Bad actress Betsy Brandt (Marie Schrader) make a cameo appearance in the episode, but the writer's room objected, considering the idea to be distracting for audiences.
The critics' consensus reads: "Subtle but with detail-oriented precision, 'Klick' further scrutinizes the complex relationship between the brothers McGill while setting the stage for a potent next season.