SPOILER ALERT: If you have not read SUPERMAN #38 yet and do not wish to know what happens, stop reading this post now (major spoilers ahead!).

SUPERMAN #38 concludes the Men of Tomorrow storyline with one of the greatest reveals in Superman history: A Brand New Super-Power.

As the issue opens, Superman and Ulysses are engaged in an epic standoff as Superman tries to save earth from Ulysses’ vengeful destruction.

Their battle reaches the ultimate climax when both super men engage their greatest energies to fight one another.

Superman pushes his go-to heat vision power to the limit, unexpectedly unleashing a massive solar flare for the very first time – knocking him AND Ulysses unconscious!

Having no idea what happened, see below as Batman explains Superman’s new super-power to him! How long will it take Superman to control his new power?  Will the Super Flare always deplete Superman’s cells? What does this mean for future battles? Sound off in the comments below!

SUPERMAN #38, written by Geoff Johns and illustrated by John Romita Jr. is available in stores now.