(The trailer begins with over a montage of scenes from RWBY Volumes 1, 2 and 2.5).
Ozpin: Ruby Rose. What is an adorable girl such as yourself doing at a school designed to train warriors?
Ruby: I want to be a Huntress.
Ozpin: You want to slay monsters?
Glynda: They're supposed to be the defenders of the world.
Blake: Grimm invasions, violent extremists, a destructive sociopath, a crazed lunatic...
Teams RWBYK, Aptus and JNPR sit at a table at the Vytal Festival fairgrounds, intercut with footage of Adam meeting with Cinder, Emerald and Mercury.
Pyrrha: We should be looking forward to a fight with actual guidelines, and not... well... murderers.
Qrow approaches Beacon Academy, confronting Weiss and Winter Schnee, who are flanked by a squad of Atlesian Knight-200 androids. Intercut with footage of Cinder in casual clothes at the spectator stands of Amity Colosseum, spectating the Vytal Festival Tournament.
Qrow: You sent me to get intel on our enemy. And I'm telling you... Our enemy is here.
Ozpin, Glynda, Ironwood and Qrow confer in Ozpin's office, gathered around a holographic display of Vale.
Ironwood: So then, what would you suggest we do?
Ozpin: I suggest we find our guardian. There's no telling when their next move will be.
Cut to wide shot of Ruby standing at a cliff's edge, packed spectator stands, and Mercury and Emerald walking casually past Team RWBYK. Then, cut to Oobleck and Port as presenters of the Vytal Tournament.
Port: And now, for the moment you've all been waiting for... Welcome to the Vytal Festival Tournament!
SonicBlade Studios
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(The next scene shows Team RWBYK taking on Team ABRN.)
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Cinder: When the first shots are fired...
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(The next scene shows Jaune and Pyrrha sitting out Beacon's hall, enjoying each other's company.)
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(The next scene shows Weiss and Damian walking through a panic crowd; all running in the opposite direction of them.)
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Cinder: who do you think you can trust?
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(The next scene shows Weiss and Winter embracing one another lovingly.)
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Pyrrha: This wasn't how things were supposed to happen!
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(The next scene shows Pyrrha looking at Penny's broken body with shock and horror.)