"First Contact, Part One"
Continued from Worlds' Finest (2012) #19 and continues in Worlds' Finest (2012) #20.
*The Worlds’ Finest teams of two worlds meet at last in chapter 1 of “First Contact”! With Power Girl’s abilities on the fritz, see what happens when her long-lost cousin Superman approaches her! And a major threat returns in a way you won’t believe! *Source: dccomics.com