In a beach town on the Baltic Sea in Romania, G, Sam, Kensi, and Deeks check out the neighborhood while Hetty chats with the head of the Comescu family, who describes a connection to G. The team shoot their way into a house and save Hetty.
根据南派三叔原著小说改编的爱奇艺自制剧集《终极笔记》讲述了自云顶天宫事件之后,吴邪刚刚从三叔处得知西沙海底的隐情,以及战国帛书与老九门的恩怨,随即收到了两盘来自张起灵的录像带。为了进一步揭开事情的真相,他追寻着录像带中支离破碎的线索来到青海,却陷入了更深的谜团,自此一路历险不断。