Ep 18. Allegiance

When a former contractor of Finch's, Arthur Claypool, begins to suffer from a degenerative disease, he hires Reese and Finch to help him find his long lost love, prompting the duo to go undercover inside a nursing home. Meanwhile, a series of flashbacks to Finch's childhood provide insight into his own father's illness and death. As the case intensifies, Claypool reveals a secret that could be the key to finding their missing person, but also puts Reese and Finch's cover at risk. As Vigilance closes in on them, Reese must decide whether to risk everything to save his friends or adhere to the demands of the mission and let them be.