Lifeline: Flatline has two Best Possible Endings. Both endings start with you waking up in the PWG hospital with Dr. Blom.

Ending One: PWG Edit

You instruct Wynn to trust Dr. Blom to help Wynn find the cure to The Green

Ending Two: The Green Edit

You instruct Wynn to let out The Green. The Green talks to you, saying that it is not human, but it is not The Green, it's something new, it's "Wynn". It says it will do whatever it has to do to get out. The Q-Comm is disabled, but it's unknown by who.