Before the Countdown (S04E22)
Title: Before the Countdown Plot: As the red virus infects the ocean, Jason struggles to prevent Neri from rushing to help Charlie. Meanwhile, Mera discovers a hidden route from her confinement and reaches the pyramid’s core, using its energy to send a mental message to Neri. Richter, along with Paul and Brett Bates, confronts the Global Union President, who, faced with the virus outbreak, permits Praxis to strike the pyramid. Shersheba confronts Neri underwater, demanding the ankh to protect both Earth and the Ocean Planet. When Neri visits ORCA, Louis spots her and alerts agent Shelby, but Helen erases evidence of Neri’s visit, undermining Louis. Jason heads to the pyramid to negotiate the terms for Neri's exchange of the ankh with Malakat.