Skynet dispatches a T-800 Terminator to hunt down Tarzan, specifically the version seen in the original novels.
The resistence sends back someone to warn Tarzan, however due to the nastyness of the Jungle he's only able to give out a single dying speech's worth of info before passing away fron illness. Tarzan will receive this warning a few hours prior to the Tarminator's arrival
The Terminator must source any weapons from the area and time period Tarzan hangs out in.