The first thing visitors to Travis's comeback tour see is the band's white double-decker bus bearing the slogan: "Peace the fuck out." It's not exactly John and Yoko's bed-in for peace, but it's a curious development from rock's supposedly most inoffensive men, who have sold millions of records featuring songs about their girlfriends.

"We've been in the wars," explains lead singer Fran Healy, referring to the 2002 incident when drummer Neil Primrose dived into a swimming pool, broke three bones in his neck and was told he might never walk again. Primrose has made a full recovery, but it's clear that this incident, coupled with the Iraq war, has caused Glasgow's finest to reassess their priorities. Moments later, Healy draws huge cheers for a quietly powerful new song, The Beautiful Occupation, announcing he's "never been interested" in politics but "doesn't pay ma taxes to pay for bombs". Travis have not got where they are today without the common touch.

Songs from 1999's hit album, The Man Who, figure heavily. However, the band sound distinctly rawer than before. Guitarist Andy Dunlop delivers their early stomper All I Wanna Do Is Rock on his back; the rest attempt to shatter their reputation as mild men by leaping precariously on the speakers.

Otherwise, nothing much happens. Travis play their quiet but beautiful songs, while a stunning light show hides the fact that, in his white suit and beret, Healy looks like a cross between Che Guevera and Frank Spencer. An unlikely orator, he manages to coax the entire crowd to sing along to Sing. However, there's an inescapable sense of a band in transition, not least when the closing anti-war theme, Peace the Fuck Out, is accompanied by huge screens flashing up the lyrics. The words "You have a voice, so use it" seem to be addressed to the audience and the band alike.