Season 1
Episode: 1x01 | Airdate: Mar 20, 1996
Captain James Ellison, US Army Rangers, is rescued after spending eighteen months on a mission in Peru. Five years later, he is a detective for the Cascade, Washington police when he starts to have problems with his senses: seeing and hearing things others cannot. When he loses a suspect as a result, he wants answers and finds them in an Anthropology grad student named Blair Sandburg.
Episode: 1x02 | Airdate: Mar 27, 1996
Garrett Kincaid, leader of the Sunrise Patriots, invades the Cascade PD building in a bid to free two of his men convicted of a series of bombings.
Episode: 1x03 | Airdate: Apr 3, 1996
Ellison is determined to hunt down the man who killed his friend, Danny. It doesn't matter that the suspect, Tommy Juno, has an air tight alibi or that Ellison's senses are fading in and out.
Episode: 1x04 | Airdate: Apr 10, 1996
The destruction of a drug lab is the first step in an all out gang war unless Ellison can figure out who is really behind it.
Episode: 1x05 | Airdate: Apr 24, 1996
Ellison investigates a serial killer who drowns his victims and then impersonates them.
Episode: 1x06 | Airdate: May 1, 1996
Ellison and Sandburg must bring a reluctant witness to Cascade. The witness refuses to fly and Ellison's senses are acting up do to a dose of cold medicine.
Episode: 1x07 | Airdate: May 8, 1996
A rogue CIA agent steals a canister of Ebola in order to coerce Ellison into helping steal a top secret plane.
Episode: 1x08 | Airdate: May 15, 1996
After a foiled bank robbery, Ellison tracks down the source of the high-powered weaponry the bank robbers were using. The case is complicated by a by-the-book AFT agent and Sandburg becoming romantically entangled with the daughter of Ellison's chief suspect.
Episode: 1x09 | Airdate: May 22, 1996
Ellison is distracted from an investigation into a series of jewelry robberies by a woman with whom he has a primal attraction.
Episode: 1x10 | Airdate: Jul 17, 1996
Sandburg takes Ellison to a monastery as a vacation and a chance to recharge his Sentinel abilities. The vacation is cut short, however, when someone starts killing the monks.
Season 2
Episode: 2x01 | Airdate: Sep 4, 1996
Simon takes Daryl along on a trip to Peru in order to bond with his son. When their helicopter is reported shot down, Ellison and Sandburg fly to Peru to find them. However, Ellison's senses are offline and a spirit guide tells him he must make a choice about his future and his heightened senses.
Episode: 2x02 | Airdate: Sep 11, 1996
Ellison must protect a singer from a murderous stalker.
Episode: 2x03 | Airdate: Sep 18, 1996
Ellison is investigated by IA after his old partner's car is found and both men are suspected of killing a kidnap victim and stealing the ransom money.
Episode: 2x04 | Airdate: Sep 25, 1996
While attending his twentieth high school reunion, Simon is accused of murdering an old high school sweetheart.
Episode: 2x05 | Airdate: Oct 2, 1996
What starts as a triple murder at a night club, quickly escalates to all out gang war between two rivals for the drug trade in Cascade.
Episode: 2x06 | Airdate: Oct 9, 1996
Ellison works to solve a series of bank robberies, all the while dealing with a producer from True Crime who wants to film a day-in-the-life of a police detective.
Episode: 2x07 | Airdate: Oct 30, 1996
Ellison hunts for an international assassin after a college call girl witnesses him commit a murder.
Episode: 2x08 | Airdate: Nov 6, 1996
Ellison and Sandburg are set out to an oil rig to investigate a mysterious death. They run into trouble, however when no one on the rig will talk to them.
Episode: 2x09 | Airdate: Nov 13, 1996
Episode: 2x10 | Airdate: Nov 20, 1996
Episode: 2x11 | Airdate: Nov 27, 1996
Episode: 2x12 | Airdate: Jan 8, 1997
Episode: 2x13 | Airdate: Jan 15, 1997
Episode: 2x14 | Airdate: Feb 5, 1997
Episode: 2x15 | Airdate: Feb 12, 1997
Episode: 2x16 | Airdate: Feb 19, 1997
Episode: 2x17 | Airdate: Feb 26, 1997
Episode: 2x18 | Airdate: Mar 12, 1997
Episode: 2x19 | Airdate: Mar 26, 1997
Episode: 2x20 | Airdate: Apr 9, 1997
Episode: 2x21 | Airdate: Apr 30, 1997
Episode: 2x22 | Airdate: May 7, 1997
Episode: 2x23 | Airdate: May 14, 1997
Episode: 2x24 | Airdate: May 21, 1997
Season 3
Episode: 3x01 | Airdate: Sep 10, 1997
Episode: 3x02 | Airdate: Sep 17, 1997
Episode: 3x03 | Airdate: Sep 24, 1997
Episode: 3x04 | Airdate: Oct 1, 1997
Episode: 3x05 | Airdate: Oct 15, 1997
Episode: 3x06 | Airdate: Oct 29, 1997
Episode: 3x07 | Airdate: Nov 5, 1997
Episode: 3x08 | Airdate: Nov 12, 1997
Episode: 3x09 | Airdate: Nov 19, 1997
Episode: 3x10 | Airdate: Nov 26, 1997
Episode: 3x11 | Airdate: Dec 17, 1997
Episode: 3x12 | Airdate: Jan 14, 1998
Episode: 3x13 | Airdate: Jan 21, 1998
Episode: 3x14 | Airdate: Feb 11, 1998
Episode: 3x15 | Airdate: Feb 18, 1998
Episode: 3x16 | Airdate: Feb 25, 1998
Episode: 3x17 | Airdate: Mar 11, 1998
Episode: 3x18 | Airdate: Mar 18, 1998
Episode: 3x19 | Airdate: Apr 22, 1998
Episode: 3x20 | Airdate: Apr 29, 1998
Episode: 3x21 | Airdate: May 6, 1998
Episode: 3x22 | Airdate: May 13, 1998
Episode: 3x23 | Airdate: May 20, 1998
Season 4
Episode: 4x01 | Airdate: Feb 1, 1999
Episode: 4x02 | Airdate: Feb 8, 1999
Episode: 4x03 | Airdate: Feb 15, 1999
Episode: 4x04 | Airdate: Feb 22, 1999
Episode: 4x05 | Airdate: Mar 1, 1999
Episode: 4x06 | Airdate: May 10, 1999
Episode: 4x07 | Airdate: May 17, 1999
Episode: 4x08 | Airdate: May 24, 1999