"Red Queen" is the seventh episode of the third season, and 51st episode overall from the Fox series Gotham.
The episode was written by Megan Mostyn-Brown and directed by Scott White. In the episode, Tetch manages to get an hallucinogen called "Red Queen" that causes damage on people.
He pours the hallucinogen on Gordon, sending him on a hallucination trip with Barbara acting as his guide.
Tetch is in fact retrieving Alice's blood to create a virus to give it to the founders in their dinner.
Meanwhile, Cobblepot sets off to separate Isabella from Nygma, telling her his real nature.
The episode received generally positive reviews, with critics praising Benjamin Mc Kenzie's performance but criticizing the pace and Tetch's plan.
Cinema Blend named Gordon's hallucinations as one of the best TV superhero moments on 2016.
Valerie (Jamie Chung) wakes up in the hospital, Gordon (Ben Mc Kenzie) having been beside her all this time.
Valerie deduces that Gordon told Tetch (Benedict Samuel) to kill Lee (Morena Baccarin) because he knew he would do the opposite.
Gordon denies this but Valerie says that he loves Lee and as such, they break up.
Gordon leaves, not sure if they left on good terms.
Meanwhile, Tetch meets with a herbalist to find a potion and is given a potion named "Red Queen", a hallucinogen that caused many people to go into the "loony bin".