Menschenversuche ist die 05. Folge der zweiten Staffel und insgesamt die 18. Folge der Serie The 100. Charlie Craig schrieb das Drehbuch und Ed Fraiman führte Regie.Die Erstausstrahlung in den USA war am 19. November 2014. In Deutschland wurde die Folge am 21. Oktober 2015 zum ersten Mal ausgestrahlt.
Marcus Kane führt eine Mission an, um Frieden mit den Groundern zu schließen.
In der Zwischenzeit stimmt Jasper Jordan einem riskanten Experiment zu, Lincoln findet sich in einer Welt voller Schmerz wieder und Präsident Dante Wallace spricht eine Warnung aus.
Murphy: "I got twenty-eight. These people don't look like warriors, Finn. And there's kids. Old people. There's nothing big enough here to hold our friends."
Bellamy: "The last time I saw you, you were closing the drop ship door. It had to be done."
Bellamy: "It's okay. I'll sleep when we find Finn. You haven't seen him, Clarke. Losing you, the others, the war ... it changed him. He executed the grounder that drew us the map. Pulled the trigger without even blinking and walked away."
Bellamy (zu Clarke): "How long until chocolate cake turns into being hung upside down and drained for their blood?"
Dr. Lorelei Tsing (zu Jasper): "Maya's been heavily sedated. You will, of course, feel that, too. It's perfectly normal."
Monty: "If you've never done this before, how do you know?"
Dr. Lorelei Tsing: "You're right. I should have said, 'it's to be expected'. This will take a while. Why don't you head back to your room? I'll send for you once he's awake."
