The best episode written by Donald P. Bellisario is "Mirror Image", rated 8.6/10 from 5 user votes. It was "directed by James Whitmore Jr.". "Mirror Image" aired on 5/5/1993 and is rated 0.5 point(s) higher than their second highest rated, "The Curse".
August 8, 1953: Sam lands in a not-so-ordinary bar in a coal-mining town, where strange things are happening and familiar people don't know him. With the help of another Al, he still has something to set right ... or is there more than one thing he needs to change?
Director: James Whitmore Jr.
Writer: Donald P. Bellisario
A Navy lieutenant who was reported missing nearly ten years ago has been found by a deer hunter. When the NCIS team arrives at the scene to investigate, they see that his remains have been mummified. Now, they have to find out what happened to him and what happened to the one million dollars that he had on his ship.
Director: Terrence O'Hara
Writer: Donald P. Bellisario
A terrorist holds Ducky, Gerald, and Kate hostage while NCIS investigate how exactly the terror organization member got a job at the navy base.
Director: Peter Ellis
Writer: Donald P. Bellisario
When Tony opens a mysterious letter thinking it's for him, a small puff of white powder comes out and it releases a possible deadly virus. Kate calls for help and soon she and Tony are isolated in a bio-hazard isolation room for precausion. McGee and Gibbs work to discover who sent the envelope and how to cure their friends before its too late for them. Meanwhile, Tony's health gets worse...
Director: Dennis Smith
Writer: Donald P. Bellisario
The NCIS team head to Cuba to investigate a Navy translator's connection to smuggling at a detention center after he suddenly dies at the wheel of his car when returning to the U.S. from Guantanamo Bay.
Director: Ian Toynton
Writer: Donald P. Bellisario
April 1, 1969: When Sam leaps into the life of an undercover cop, Al explains that his mission is to convince a navy nurse that her MIA husband is still alive, and to prevent her from marrying a lawyer she meets on the day Sam leaps in. But a series of coincidences causes Sam to wonder about the true nature of his mission.
Director: Michael Zinberg
Writer: Donald P. Bellisario
After the terrorist's attack, the NCIS team is shocked and is trying to cope with Kate's sudden death, each in their own way. Now, their mission is to collect all the possible info on Ari and find a way to stop him before he does any more damage. Meanwhile, while feeling guilty over Kate's death, Gibbs is informed that the NCIS director is leaving, and the replacement is Jenny Shepard, a woman Gibbs worked with in the past and had a romantic history with.
Director: Dennis Smith
Writer: Donald P. Bellisario
Still stressed over Kate's death, Gibbs is even more hurt when Ari kidnaps Ducky and decides to play with his mind. Gibbs sends Tony to follow Ziva, and after Jenny and Gibbs are almost shot to death, he is even more determined to finish once and for all with Ari, and Ziva's strange connection to Ari will be just the help that he needs.
Director: James Whitmore Jr.
Writer: Donald P. Bellisario
November 25, 1969: As himself at the age of 16, Sam has the opportunity to both win the high school basketball championship and save his family from their sad fates.
Director: Joe Napolitano
Writer: Donald P. Bellisario
The team takes upon another strange case when a telemarketer reports a possible murder of a petty officer who appeared to be dying over the phone. However, with the help of Virginia officials, the team finds out that officer's call was just a big joke using the computer skills, until he is actually found dead...
Director: Terrence O'Hara
Writer: Donald P. Bellisario
The terrorist from Bette Noir returns with a plan to attack the President. Gibbs and his team follow the clues to reveal his identity and find Kate who is kidnapped.
Director: Thomas J. Wright
Writer: Donald P. Bellisario
When Ziva accidentally witnesses a political assassination, she must surrender to the FBI and deal with the consenquences without Gibbs's help, who is now enjoying his retirement. She learns that the FBI is looking for her and escapes, while the NCIS team, leaded by Tony, must prove that Ziva is innocent. However, when things get more complicated, Ziva seeks help from the one person that always trusted her, Gibbs.
Director: William Webb
Writer: Donald P. Bellisario
April 7, 1970: As a Navy SEAL in his own brother's squad, Sam must determine whether he is there to save Tom's life or ensure the success of the mission on which his brother was killed. Also Al from 1970 was a P.O.W.
Director: Michael Zinberg
Writer: Donald P. Bellisario
August 13, 1956: Flying over the Bermuda Triangle, Sam, as the co-pilot, must prevent the flight from returning to Virginia, to get a seriously ill passenger to a doctor before she dies. Flying through the triangle is riskier than it seems, and Sam, deprived of Al's help when the hologram fades out, must get them through alive.
Director: Anita W. Addison
Writer: Donald P. Bellisario
June 25, 1957: Sam leaps into Al Calavicci to prevent the death of his married lover. But when Sam accidentally alters history, and finds out too late about her untimely demise, it could mean the gas chamber for Al and disturbingly a whole new situation at Project Quantum Leap.
Director: James Whitmore Jr.
Writer: Donald P. Bellisario
October 5, 1957 - November 22, 1963: As a result of leaping again before he had a chance to complete his original mission, Sam finds himself leaping back and forth through the life of Lee Harvey Oswald. Following the sole assassin theory, Sam and Al attempt to prevent Oswald's attack on John F. Kennedy. But, with each leap giving Oswald more control over Sam's body, history seems doomed to repeat itself.
Director: James Whitmore Jr.
Writer: Donald P. Bellisario
October 5, 1957 - November 22, 1963: As a result of leaping again before he had a chance to complete his original mission, Sam finds himself leaping back and forth through the life of Lee Harvey Oswald. Following the sole assassin theory, Sam and Al attempt to prevent Oswald's attack on John F. Kennedy. But, with each leap giving Oswald more control over Sam's body, history seems doomed to repeat itself.
Director: James Whitmore Jr.
Writer: Donald P. Bellisario
When Jenny returns from her European trip, the entire NCIS team will be forced to take a Homeland Security polygraph test, and the deepest secrets of each agent are about to be revealed. Plus, an unarmed Tony and Jeanne are held hostage by a ruthless drug dealer.
Director: Dennis Smith
Writer: Donald P. Bellisario
June 15, 1945: Struck by lightning, Sam and Al find their roles reversed, as Sam returns to the future, and to a long-lost love, while Al leaps back to 1945 to prevent the death of a returning World War II hero and his former girl friend.
Director: Michael Zinberg
Writer: Donald P. Bellisario
When a Navy commander's body washes up on shore along with the bodies of two drug runners, Gibbs refuses to believe that the sailor who was killed was dirty.
Director: Bradford May
Writer: Donald P. Bellisario
September 13, 1956: Sam Beckett wakes up in 1956, disoriented, suffering from amnesia, but he has the awful realization that he does not belong there...
Director: David Hemmings
Writer: Donald P. Bellisario
During a simulated attack a seriously wounded Marine is found on the beach. JAG is called in to investigate. Harm and Meg follow two ways: An executed Code Red or a brawl. Locations: Camp Pendleton and area; Los Angeles
Director: Michael Zinberg
Writer: Donald P. Bellisario
When Starbuck's rival in the popular sporting event is found murders, all the evidence points to Starbuck; and Apollo is about the only person who believes in Starbuck's innocence.
Director: Rod Holcomb
Writer: Donald P. Bellisario
When Baltar plans his escape with the help of the three Borellians and the Eastern Alliance Enforcers, members of the Council of Twelve are taken hostage, and Adama must give in to the escapees' demands.
Director: Winrich Kolbe
Writer: Donald P. Bellisario
Lt. Harmon "Harm" Rabb, a JG Lawyer who investigates and litigates crimes committed by Navy and Marine personnel, looks into the mysterious death of a female pilot aboard an aircraft carrier. Harm is convinced the female pilot who fell overboard didn't commit suicide, but was actually pushed, with all the suspects aboard the aircraft carrier.
Director: Donald P. Bellisario
Writer: Donald P. Bellisario