CBR

Brandon Routh's Kingdom Come Superman doesn't look too pleased to meet Tyler Hoechlin's Man of Steel. 1 / 13

Judging by previously released stills, the photo takes place on Kingdom Come Superman's Earth... 2 / 13

...where he is the Editor-in-Chief of The Daily Planet. 3 / 13

Kingdom Come Superman's face is a mask of rage as he grips his doppelganger by the throat. 4 / 13

Both Supermen gaze off-screen, which means someone could be trying to talk him down. 5 / 13

In the final trailer for the crossover, Hoechlin's Superman is charged with an important role. 6 / 13

Though the trailer doesn't say exactly what that is, he can be seen trying to recruit Smallville's Superman. 7 / 13

This suggests he is looking for other Supermen to help save the mutliverse... 8 / 13

...which will likely lead him to this violent moment with Kingdom Come Superman. 9 / 13

Kingdom Come Superman is much older and has seen more than the one Tyler Hoechlin plays... 10 / 13

...which could factor into this response. 11 / 13

You'd probably be unsettled to see a different version of yourself, too. 12 / 13

"Crisis on Infinite Earths" begins Sunday, Dec. 8 at 8 p.m. ET/PT on Supergirl. 13 / 13