While Chicago P.D. is the exact match for that title and episode number, other series have prominent "memory" themes or similarly numbered episodes:
: Voight and his team investigate a shocking new crime that has ties to an old, unsolved case. [S9E20] Memory
: The case focuses heavily on Burges and Ruzek , particularly their concerns regarding Makayla’s mental healing . As the investigation delves into the concept of "buried memories," Burgess begins to realize the potential trauma Makayla might face if her own repressed memories were to surface. While Chicago P
This episode centers on a brutal new crime that forces the Intelligence Unit to reopen a cold case for clues. As the investigation delves into the concept of
: A recent series starring Patrick Dempsey as Angelo Doyle, a hitman suffering from early-onset Alzheimer’s . Its Season 1 finale (Episode 10) is the culmination of his failing memory and his double life. Chicago PD Season 9 Episode 20 Review: Memory - TV Fanatic
: While not Season 9, the episode " The Next Generation " (the series' final season premiere) deals heavily with Picard’s memories of his past and the "memory" of his old crew.