ALL ABOARD THE OWL EXPRESS! NATE, THE GREAT DETECTIVE, AND HIS DOG SLUDGE, HIT THE RAILS ON THEIR LATEST CASE. THEIR MISSION: TO GUARD AN OWL NAMED HOOT. HOOT BELONGS TO NATE'S COUSIN, OLIVIA SHARP, AND SHE THINKS SOMEONE ON THE TRAIN MIGHT BE OUT TO GET HER FEATHERED...