Sparks fly at the annual Ironwood Firefly Festival. Caitlyn decides to take a leap of faith. Zac jumps the gun on his mission to race Harris Bowers. Marcel unveils his signature logo. Curtis is pulled into the seedy world of his brother, Ray. And Uncle Logan is presented with an opportunity.
Zac and Curtis skip school together and watch some high octane drag racing at an abandoned air strip, run by Curtis' brother, Ray. Kiara invites Caitlyn to lunch, which turns into a group outing. A video of Harris Bowers' street takeover is mocked online, leading to an exhilarating street race. Zac asks Logan to train him, just like he taught his brother, Zac's dad, years ago.
With only three weeks until Zac's race with Harris, the crew works overtime to finish the UNB10 car. Zac's confidence grows with Ray's guidance. Caitlyn and Curtis discover a possible clue to Christian Maddox's whereabouts. Logan discovers who Zac's been training with. Harris faces a new challenge on his mom's birthday memorial. Curtis takes Brooke for a ride on his bike.
It's time to turn the key on the UNB10 car, but will it start? Zac gets a big race at the speedway, but with an unexpected opponent. Ryan asks Harris to meet someone. Brooke and Curtis grow closer. Logan and Hugo are out of options. Marcel and Brooke become “friendly” rivals.
Marcel gets bad news about his dad, so the crew takes him to White Knuckle Run, an ATV dirt motocross event in nearby West Newton. Logan and Sam take a road trip to see Marcel's mom. Sheriff Hugo Young enlists Ray's help finding some local criminals. Harris challenges Zac.
UNB10 is ready for the big race, but is Zac? Caitlyn visits Buzz at the junkyard, wondering what's next for her. Marcel takes a leap of faith. Brooke prepares for her winter break. Curtis confronts his father. Logan attempts to get out of Ezra's plan. Kiara stands up to her mom. And Harris, feeling lost and alone, reaches out to Alicia.
Renowned pastry chef Steven He delivers a magical pressure test with his Balloon Puppy Cake.
The eight-part true crime limited series takes you inside gripping relationships that went from love to betrayal to murder.
The FBI's investigation into MS-13 in Boston is complicated by an informant's unsanctioned crimes.
When a drug dealer reports extortion by a New Orleans police officer, the FBI launches a full-scale investigation into dirty cops. But the sting turns deadly when wiretaps pick up threats to an undercover agent and a cop ordering a hit.
The FBI teams up with Massachusetts State Police to infiltrate, disrupt, and dismantle the extremely violent MS-13 gang network in Greater Boston. They get a break in their case when a recently deported Salvadoran man agrees to become their informant.
In rural Oklahoma, two young girls are found gunned down. After two years with no leads, the FBI profiles the killer, believing the cold-blooded murderer is a local who used two guns to execute the girls-and will likely kill again.
At a casino in Lake Tahoe, a bomb threat leads to a tense FBI mission. Unable to defuse the complex bomb, agents detonate it safely-but it destroys the hotel. As the FBI investigates, they uncover surprising connections to a gambling addict father.
When a woman from a small town in Oklahoma goes missing, state and FBI agents wonder if the suspect in that investigation fits the profile of the killer in the case of two young girls shot dead at the side of a country road - three years earlier.
In 2003, a disguised man robs the Xerox Federal Credit Union, killing one and injuring another. The case goes cold until 13 years later, when new DNA testing and a fresh tip bring a breakthrough, leading to a shocking resolution.
A serial rapist stalks the streets of Scarborough and police call in the FBI. Profiler Gregg McCrary sees a pattern of escalating violence and worries the suspect will resort to murder. When teenage girls turn up dead, his worst fears are confirmed.
A DNA hit links the Scarborough Rapist to murders, exposing a killer couple. The wife claims abuse and testifies, but home videos suggest she's just as guilty. Investigators uncover their dark past, including her sister's death.
The murder suspect is revealed to be a journalist reporting on his own crimes. He travels to Los Angeles, where more prostitutes are killed. As police close in, he flees to Miami with his girlfriend. U.S. Marshals track him down.