Arnold stops by on his way to a wedding to explore Modena with his Little Bud. But he hasn’t told Dev the whole truth about his trip.

Leonard and Sheldon’s friendship is tested; Howard’s latest foray into helping his mother has some disastrous side effects.

The entire warehouse staff quits after winning the lotto, leaving Andy and Darryl to scramble for replacements while several of the office workers get a taste of the warehouse life.