Zeus Goes Missing - S1.E13

Zeus is ambushed by Quantum/Dark-01 and Dark-02. As they enter the Zentrium chamber inside the Undersea Stronghold, Megan and Nick suspect they have walked into a trap. Sure enough, all kinds of weapons open up at them and, as they try to shut down the Zentrium, the voice of OmicronPsy announces they have activated a time bomb and have five minutes to get clear. Meanwhile Zeus and Quantum slug it out, and Dr Coy and Akina get King and Fighter to deal with Dark-03. Luckily, Nick discovers that they can delay the explosion by ten minutes-maybe-and so they make good their escape yet again, but without Zeus who is detained by Quantum. Right then the Zentrium self destructs in a huge explosion. Megan cannot tell whether Zeus has escaped. Megan finds it hard to hold back the tears.