If you are looking for written material ("papers") on this episode, these sources provide the most depth:
: Liz hires The Freelancer (Alban Veseli) to sabotage a plane's sensors, nearly causing a mid-air collision. Her goal was to "save" Mary from the crash to gain her trust and secure an introduction to Townsend. "The Blacklist" Chemical Mary (No. 143)(2021)
: Offers a detailed profile of Mary Bremmer, including her criminal history, alliances, and the moral questions the episode raises about warfare. If you are looking for written material ("papers")