Recap
Britten is called to help a hostage situation in the red reality, and ends up inside trying to talk down Gabe, the patient who has taken it over. Gabe ends up injecting Britten with drugs that put him to sleep and force him back into the Green reality.
Britten catches Rex in a lie, and is able to move forward with their relationship because of it. Making a good impression on Rex and his girlfriend, Emma.
Britten wakes up back in the red reality and is able to talk Gabe down.