Complete story — includes the ending
Bellamy is caged in Mount Weather along with numerous grounders. Jasper's search for Monty and Harper remains fruitless, so he confronts the President about their disappearance. Cage sends snipers to assassinate Clarke and Lexa; they are intercepted and one is captured for questioning. Maya discovers Bellamy being harvested for blood and saves him with help from an imprisoned grounder named Echo; he makes contact with Clarke. President Wallace and Jasper discover Dr. Tsing's illegal experiments on Harper and Monty. Cage ousts his father as President and orders a lockdown for the surviving 47 teens. Realizing she has to draw attention to the outside for Bellamy's sake, Clarke sends Emerson, their captive, back to Mount Weather with a message boasting about the army that is coming for them.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of The 100 episodes. HTML formatting and reference markers removed. · Content license