<Tr> <Th> 36 </Th> <Td> 7 </Td> <Td> "Thirteen" </Td> <Td> Dean White </Td> <Td> Javier Grillo - Marxuach </Td> <Td> March 3, 2016 (2016 - 03 - 03) </Td> <Td> 3J5757 </Td> <Td> 1.39 </Td> </Tr> <Tr> <Td_colspan="8"> Murphy convinces Titus to tell him more about the origin of his religion, speculating that the first Commander was from the 13th station rather than born on the ground . Flashbacks to 97 years earlier reveal that after A.L.I.E. causes the nuclear apocalypse by hacking all of the world's computer launch codes, Becca--A.L.I.E.'s creator and avatar template--attempted to create A.L.I.E. 2.0 to interface more directly with humanity . When The Ark destroyed her research station Polaris, Becca injected herself with an unknown black substance while implanting the ALIE 2.0 in her neck, and traveled to Earth in an escape pod . In the present, Clarke and Lexa sleep together for the first time as they prepare to part ways in response to Lexa's decision to blockade Arkadia until Pike is removed from leadership . Titus attempts to ensure that the Sky People are destroyed by shooting Clarke and blaming Murphy for it, only he shoots Lexa accidentally . After Lexa dies, it is revealed that the A.L.I.E. 2.0 computer has been implanted in the back of her neck; Titus describes it as the spirit of the Commander . </Td> </Tr> <Tr> <Th> 37 </Th> <Td> 8 </Td> <Td> "Terms and Conditions" </Td> <Td> John Showalter </Td> <Td> Charlie Craig </Td> <Td> March 10, 2016 (2016 - 03 - 10) </Td> <Td> 3J5758 </Td> <Td> 1.20 </Td> </Tr> <Tr> <Td_colspan="8"> Two grounders inform Arkadia of the blockade and note that it will only be lifted if Pike is surrendered to them . In response, Pike begins to plan for war, while Kane plans to hand Pike over to the grounders . To this end, Sinclair allows himself to be arrested . He and an interned Lincoln stage an argument in lock - up, creating a distraction for Kane to capture Pike . Bellamy and other guards intercept him at the gate . Meanwhile, Raven convinces Jasper to help her break into Pike's office to recover the confiscated chip manufacturer . Jasper, mentioning Finn, prompts a realisation that Raven has no recollection of him at all, and they leave the device where it is . As Jaha reflects on his future plans, Pike decides to sentence Kane to death for treason, forcing Bellamy and Monty to re-evaluate which side they are truly on in the ever - escalating tensions towards war . </Td> </Tr>

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