Get ready for a European adventure that will take you from the wind-swept castle walls of drizzling Scotland to the stillness of medieval churches in sun-drenched Italy. Asha Kapoor's travel tours are high on fun and (allegedly) light on history. Her coworker Callum Kelly's tours are heavy on history and (most certainly) lacking in whimsy. Luckily, they both run their own tours and don't have to worry about each other's distinct styles. Until their boss combines both tours into one grand European expedition. Suddenly, Asha and Callum have to find a way to lead the tour without ruining the experience for the guests, throwing the other off a castle turret, or making out in the front of the bus. That last task is made harder by the fact that while they don't like each other, they can't resist the romance of long days and nights gallivanting around Europe with an attractive co-guide. But just as this grumpy scholar and sunshine art history lover start to find out their differences might be more appealing than originally thought, the tour is once again thrown into turmoil by their boss. But they are professionals, and the tour must go on. Now if only they could figure out what will happen to their budding vacation-ship.