An older Dick Grayson walks his dog through town when the skies turn red.
Kara saves a man announcing the end of the world from the dragon Spike who is upset about something.
Oliver is talking to Mia about his past with Lian Yu when Lyla, now the Harbinger, arrives to enlist their help.
Barry is zipping around the city investigating the red sky when the Harbinger arrives.
Kate is interrogating some members of the Wonderland Gang to find Alice when the Harbinger arrives and takes her away against her will.
Sara and Ray are having trouble at trivia night during their hiatus when the Harbinger arrives.
Barry tells Oliver about his upcoming death and Oliver calls out for the Monitor to demand answers.
The heroes gather at the new risen Spire to defend it from the shadow attackers while it protects the planet from the anti-mater wave.
Kelly and Nia help coordinate the evacuation of people onto the refugee spaceships.