Gotta love pandemic problems :/TFAWS has a lot of plot lines that they Oops through.
The whole Karli stealing vaccines and medicine as well as the super soldier serum was supposed to be a plot line but it was too close to covid so they cut it. The old lady Dunya or whatever was supposed to also be a big plot point but they left weird bits of that in as well. Plus the mad scientist guy but they just killed him off after having him redo a line before he gets shot (he says this line but his face is covered during so you don't see his mouth)