John's on the hunt for Jorge Rico-Ruvira, accused of murdering his girlfriend in 2020 and abducting their young son. Later, John and Cal shine a spotlight on the case of 15-year-old Sophie Reeder, who was abducted in 2017 and may be in grave danger.

John joins the hunt for fugitive Hector Hugo Ramirez-Lopez, suspected of both murder and sexual assault. Cal uncovers dark family secrets in the case of Sherman Jackson, who's been on the run since 2010.

John is in pursuit of fugitive Jason Hines, accused of sexually abusing multiple minors and possibly involved in his wife's disappearance. Later, a slew of women allege they were sexually assaulted by chiropractor Steven Clifford on the run since 2002.

John Walsh joins the hunt for Adarus Black, who allegedly killed a young woman in broad daylight; Cal is in San Diego to help track down Michael Pratt, whose pornography ring allegedly ensnared over 100 women using fraud, coercion, and possibly force.

When a couple is murdered, police suspect vengeful relative Kevin Anderson, and John aids the hunt for this fugitive of justice. Later, Cal helps police track down Martin Munoz, accused of heinous sexual assaults against his own daughters.

John aids investigators in pursuit of fugitive Pedro Espinoza, accused of two senseless murders in a two-year span. Later, after an 85-year-old woman is brutally stabbed to death, Cal joins the hunt for the alleged killer, Ervis Mecollari.

John joins the hunt for Lorrain Smith, a woman who allegedly hired a hitman to murder her husband. Later, Cal pursues John Panaligan, a man accused of killing the lawyer who was suing him.

A single mom is murdered, and police suspect Isaac Estrada, a man she'd just met. Estrada flees, and John is in close pursuit. Cal goes behind the scenes of Miami's luxury car rental business, helping police hunt down alleged killer Nalio Williams.

A woman's murder leads police to suspect her husband - and former prison pen pal - William Plemons, who's been on the run since 2003. Cal joins the hunt for suspected murderer and arsonist Darryl Walker in Georgia.

When a young woman is murdered, police suspect her boyfriend Carlos Torres, but before his trial, Torres cuts off his ankle monitor and flees. Cal joins the hunt for Bill Brockbrader, a child predator wanted for failure to register as a sex offender.

John joins the hunt for Brian Ontiveros, who is alleged to have killed his ex-girlfriend in a fit of jealousy. Later, a woman's mysterious death has Cal join police in the search for Robert Kuehn, who's been in the wind since 2013.

John hunts Erik Arceneaux, the prime suspect in the murder of a devoted single mom whose family needs justice. Later, Cal learns the dark truth behind Mark Blevins, an alleged sexual predator who has been on the run for over thirty years.