Following a routine mission at the Tanuga IV science station, Riker beams back to the U.S.S. Enterprise moments before Dr. Apgar, the director of the Starfleet research facility, is killed in an explosion. A short time later, Chief Investigator Krag of the Tanugan security force arrives to take Riker into custody after Apgar's widow, Manua, and his assistant Tanya accuse the first officer of threatening Apgar. Picard, however, refuses to release Riker until reasonable evidence is offered to warrant his arrest. Programmed with the testimonies of Riker, Manua, Tanya and the information in Apgar's personal journal, the holodeck recreates the events leading up to the fatal explosion, according to each person's perspective. Contrary to Riker's claims, the accounts of the other witnesses indicate that he had tried to seduce Manua and intimidate Apgar. Although Picard does not believe the accounts, he admits that the corroborating testimonies provide Krag with enough evidence for Riker's extradition.
