Find out what's in store for the first-ever crossover between Chicago P.D. and FBI, which effectively joins three NBC shows and two CBS shows into one television universe, when the FBI Season 2 finale airs Tuesday, March 31 at 9 p.m. ET on CBS. While it's not quite a multi-parter like P.D.'s recent event with Chicago Fire or FBI's crossover with FBI: Most Wanted, it's a very big first step between two competing networks. Honestly, is there anything on TV that Dick Wolf can't do?