Secret Meeting is the first episode of Young Justice.
A hand bearing a black glove reached out for a phone. The figure lifted the phone, and dialed a number. At a different house, a flash of light came into the room, and in a second, another figure was lifting up a different phone. Somewhere underwater, a different figure grabbed a phone. Suddenly, the figure underwater was revealed. Aqualad was standing, or floating, or whatever Atlantians do, and was holding a phone. The other figure with superspeed was revealed to be Kid Flash. The first figure was revealed to be Robin, boy wonder.