"Law & Order," the longest-running crime series and the second-longest-running drama series in the history of television, is now in its 20th season on NBC.

The brainchild of creator Dick Wolf, "Law & Order" is the most successful brand in primetime television. It is the 1997 Emmy Award winner for Outstanding Drama Series and the record holder for the most consecutive (11) nominations in that category for a primetime series (tied with "Cheers" and "M*A*S*H"). It has also become one of entertainment's preeminent brands, with its successful spinoffs "Law & Order: Special Victims Unit" and "Law & Order: Criminal Intent."

Filmed entirely on location in New York, the realistic program looks at crime and justice from a dual perspective. In the first half-hour, Detective Cyrus Lupo (Jeremy Sisto) and his new partner, Detective Kevin Bernard (Anthony Anderson), investigate crimes and apprehend suspects under the supervision of their precinct lieutenant, Anita Van Buren (S. Epatha Merkerson). In the second half-hour, the focus shifts to the criminal courts as Chief Assistant District Attorney Michael Cutter (Linus Roache) and the Executive Assistant District Attorney Connie Rubirosa (Alana De La Garza) work within a complicated justice system to prosecute the accused under the guidance of the newly appointed District Attorney Jack McCoy (Sam Waterston).

Some cases may be simple, but most are multi-faceted. The investigations are challenging, prosecutions are complicated, and decisions about legal procedures and plea-bargaining are vexing. In the arduous and complex process of determining guilt and innocence, lives often hang in the balance.