Victims' rights activist John Walsh and his son, Callahan, showcase time-sensitive, unsolved cases in desperate need of attention, mobilizing the public to engage in the pursuit of justice.
Where to Watch In Pursuit with John Walsh • Season 4
Lying in WaitJohn is in pursuit of William Strand -- police say he killed his ex-girlfriend who was also the mother of his son. Later, Cal hunts for Leslie Lagrotta, a suspect accused of sexually assaulting women in central Florida for over a decade.
Collateral Damage
E2
Collateral DamageJohn is in pursuit of suspect Jonathan Dorado, wanted for killing a woman and her unborn child in an act of misplaced gang revenge; Cal hunts for Henry Houston, accused of conning a vulnerable woman and later killing her father in an altercation.
Stolen Innocence
E3
Stolen InnocenceWhen a man is senselessly gunned down at a party, police learn it may be a case of mistaken identity; John joins the hunt for suspect Colin Jerrick; Cal helps police hunt David Bonness, accused of sexually abusing his former stepdaughter.
Unforgotten
E4
UnforgottenJohn joins the search for Celina Mays, whose disappearance draws police attention to her family-run, allegedly cult-like church; Cal hunts for Efren Meza, who was accused of stalking and stabbing his ex-girlfriend.
Evil Deception
E5
Evil DeceptionWhen a young girl goes missing after a night out in Vegas, police suspect her friend Erick Rangel-Ibarra; Cal goes after Jerold Dunning, accused of sexually abusing his girlfriend's daughter for years.
Bloodshed and Blackmail
E6
Bloodshed and BlackmailJohn helps police track down Glen Holmes, accused of carjacking a couple and murdering one of them. Later, Cal joins the hunt for online predator Adrian Fierros, who coerces young girls into sending him explicit photos that he uses to extort them.
A Broken Bond
E7
A Broken BondWhen a young father is executed, police learn the shooter may have been his close childhood friend. John helps track down the alleged killer, Diontae Whitson. Later, Cal's in pursuit of Louis Rojas, accused of murdering his ex-wife's new husband.
A Father's Betrayal
E8
A Father's BetrayalJohn joins the hunt for Arturo Munguia, aka Jesse Vega, accused of murdering his girlfriend in an act of petty jealousy. Later, Cal helps track down Rex Byrnes, an unemployed metalhead whose own daughter accuses him of years of sexual abuse.
Deadly Secrecy
E9
Deadly SecrecyJohn goes after Eduardo Clemente, the prime suspect in his girlfriend's murder after her body turns up in the desert; Cal visits North Carolina to hunt down Emigdio Ramirez Garcia, accused of ruthlessly murdering his wife in 1997.
Murder At The Mall
E10
Murder At The MallJohn is in pursuit of Jolene Hibbs and Charles Ausiello, a couple accused of murdering a retiree and selling off his assets; John and Cal team up to hunt for the mysterious Boca Raton Mall murderer who terrified South Florida in 2007.
Blindsided
E11
BlindsidedJohn hunts Omar Cardenas, the prime suspect in the murder of a devoted father who may have been caught in a random act of gang retaliation. Later, Cal heads to Pennsylvania to track Justin Smith, accused of murdering his pregnant girlfriend.
Last Ride
E12
Last RideJohn hunts for Jose Bustos-Diaz, a convicted killer and prison escapee suspected in another slaying. Later, Cal's in pursuit of Benjamin Williams, accused of murdering his ex-girlfriend in front of her two young children, including his own baby.
