 After being approached by Isaac and Sophia, who pass him information that Sophia was able to retrieve from the Norcal Laboratory, he stays behind to continue gathering information, which is revealed to be evidence of Echidna and Goldstein's plot against the city.He narrowly escapes as his building begins to flood, climbing to the same tower where Joshua and Stephanie are evacuating from via helicopter; Keith will either give the evidence to Jaden or Joshua depending on whether Aiden was spared or allowed to die by Amber.The collapsing tower suddenly shifts, forcing Keith to hold onto the radio antenna; If Sophia survived Isaac's chapter, she and Isaac will rescue Keith by helicopter, and Keith will look out over the sinking city as he departs, reflecting on its fate.