Once modern rock royalty Creed returned with a new album and tour in 2009, the future of Alter Bridge - which features three-fourths of Creed as well as singer Myles Kennedy - remained a bit hazy. Yet the members of the Orlando-based outfit have been willing to not only continue recording but also push the band's pummeling sound in new directions. "Isolation," the first single from third album "AB III," finds the quartet dabbling in a grunge-influenced style reminiscent of peers like Breaking Benjamin and Three Days Grace. The track benefits from a mid-section punctuated by speedy riffs and an incendiary guitar solo. Meanwhile, Kennedy's doom-and-gloom lyricism ("When all is lost to you inside/When all the darkness takes the light/The ritual it has begun/And now you tear away from everyone") is congruent with the overpowering tone. No longer in a nebulous state, Alter Bridge seems committed to reestablishing its rock radio presence with "Isolation."