Echoes in the Void

Chelsea discovers Kate Morrison hidden for three months in family residence and finds human toy (20 years old) among alien toys. Team discovers floating platform powered by unknown forces. Chelsea descends into subsurface while platform becomes unresponsive.

Rylee leads exploration of three-story research facility discovering biological specimens and non-human humanoid body in cryo-chamber. Research confirms non-human species built settlements 600 years ago.

Team arrives on Echo-Seven discovering sterile settlement with forty buildings. Following Team 2 beacon, they find automated transmitter broadcasting for fourteen months and Team 2 habitat with warm coffee and book left open, indicating instantaneous disappearance.

Chelsea watches Lucas infection worsen as team approaches planet where Team 2 beacon reappears. Endeavor accelerates toward coordinates with seven hours to impact. Ends with Kate Morrison revealed as sole survivor on planet, hearing voices only she perceives.