That 1969 Ford Mustang on the cover of Drenge’s Undertow -- with its brake lights ominously lighting the deserted forest road from which it appears to have suddenly swerved -- is “either the starting point or ending point” for every song on the U.K. band’s bold and evolutionary sophomore album. “The car, the woods, the idea of feeling stuck,” says singer-guitarist Eoin Loveless, “are themes that keep cropping up in these songs. It’s a record about getting out of somewhere.”