When Worlds Collide (Numbers)

"When Worlds Collide"
Numb3rs episode
Episode no.	Season 4 Episode 18
Directed by	John Behring
Written by	Cheryl Heuton Nicolas Falacci
Featured music	"Warning Sign" by Coldplay
Production code	418
Original air date	May 16, 2008
Guest appearance(s)
Barber Ali as The Real Hassan Mazari Shan Ali as Hadi Rafiq Michael Balsley as Cop Shawn Doyle as Shane O'Hanahan John Hawkinson as Attorney Željko Ivanek as William Fraley Nick Jaine as Benjamin Rajar Ravi Kapoor as Phil Sanjrani Roman Mitichyan as Kaleen Rafiq Paul Vincent O'Connor as Max Flaherty Meera Simhan as Asha Rafiq Tiya Sircars Shaza Rafiq Kevin Symons as CIA Officer David Valcin as Sport Coat #1
Episode chronology
← Previous "Pay to Play" Next → "High Exposure"

"When Worlds Collide" is the 18th episode and the season finale of the fourth season of the American television show Numb3rs. In the episode, two brothers, one a Federal Bureau of Investigation (FBI) Special Agent and the other a mathematician, disagree with each other on the issue of academic freedom after one of the mathematician's friends is arrested on terrorism charges. Series creators Cheryl Heuton and Nicolas Falacci, who wrote the episode, first mentioned the idea for the brothers' conflict during a season two commentary. When Heuton and Falacci wrote the episode for season four, their episode launched a story arc that was later resolved during season five.

"When Worlds Collide" first aired in the United States on May 16, 2008. Critics gave the episode positive reviews. One called the episode "intense" while another called it "game-changing". In addition, this episode also marks the final appearance of Megan Reeves.

Two men are kidnapped . Meanwhile, in front of Drs. Charlie Eppes (David Krumholtz) and Larry Fleinhardt (Peter MacNicol), FBI Special Agent William Fraley (Zeljko Ivanek) arrests Dr. Phil Sanjrani (Ravi Kapoor), one of Charlie's friends, on charges of sending classified information that could assist terrorists to Pakistan. When Charlie, a FBI math consultant, goes to the FBI office to discuss Phil's arrest, FBI Special Agent Don Eppes (Rob Morrow), Charlie's brother, asks Charlie to link Phil to the kidnappings as Phil and the kidnapping victims belonged to the same Pakistani charity. While insisting on Phil's innocence, Charlie suggests using social network analysis to find the connection between the victims and their kidnapper. Don, Fraley, and FBI Special Agents David Sinclair (Alimi Ballard), Colby Granger (Dylan Bruno) and Megan Reeves (Diane Farr) uncover evidence that the kidnapping victims could be planning an RPG attack on a Los Angeles school. Although Phil asserts that he sent research on DNA modification of crops to Pakistan, Fraley insists that Phil has given terrorists a way to create a bioweapon. Megan is not convinced of Phil's guilt. Charlie's analysis reveals that, by the FBI's own criteria, neither Phil nor the charity is linked to terrorism. David and Colby later find the kidnapping victims dead.

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Wikipedia