Event:

Batman confronts Superman in a dark alley, mistaking him for a villain.

Scene:

Batman standing with his cape flapping in the wind, holding a batarang, while Superman hovers above him, eyes glowing red.

Event:

Superman explains to Batman that he is not a threat and that he is on a mission to stop an otherworldly invasion.

Scene:

Superman and Batman standing face-to-face, silhouetted against a fiery explosion in the background.

Event:

Batman agrees to join forces with Superman to stop the invasion and they travel to a secret government facility to retrieve advanced weaponry.

Scene:

Batman and Superman looking over a table filled with high-tech gadgets in a dimly lit, underground laboratory.

Event:

Upon retrieving the weapons, Batman and Superman encounter a group of aliens who have already infiltrated the facility.

Scene:

Batman and Superman standing back to back, surrounded by alien creatures with claws and glowing eyes.

Event:

Batman and Superman engage in an intense battle with the aliens, using their skills and advanced weaponry to hold them off.

Scene:

Batman throwing a smoke grenade while Superman uses his heat vision to blast a group of aliens charging at them.

Event:

Amidst the chaos, Batman and Superman discover the aliens' true intention: to extract a powerful energy source hidden beneath the facility.

Scene:

Batman and Superman staring in awe as a massive, glowing crystal rises from the ground, surrounded by a bright aura of light.

Event:

Batman and Superman team up to stop the aliens from obtaining the energy source, unleashing the full extent of their abilities to overpower the enemy forces.

Scene:

Batman and Superman standing side by side in front of a massive explosion, surrounded by the wreckage of the alien invasion.

Event:

With the invasion thwarted and the energy source secured, Batman and Superman part ways, acknowledging each other as allies against future threats.

Scene:

Batman and Superman looking at each other with mutual respect, as they stand in front of the Batmobile and the remains of the alien ships.