Serge Pilardosse just turned 60. He's been working since he was 16—he's never been sick, never been on welfare. Now, with retirement just around the corner, Serge is in for a nasty surprise, as some employers over the years never did the paperwork necessary to feed his pension. So, encouraged by his wife Catherine, Serge dusts off his old "Mammoth" motorcycle from the 70s and sets off to pay a visit to each and every boss who owes him a chunk of retirement. The road trip soon becomes less about missing paperwork and more about rekindling his love of the open road.