The Flight Attendant

Almost a year sober, Cassie is living her best life in Los Angeles, has a supportive new boyfriend Marco窶ｦ and moonlights as a CIA asset in her spare time. But when her latest assignment inadvertently makes her an eyewitness to a murder in Berlin, Cassie becomes entangled in yet another international mystery. Later, Annie and Max arrive in LA with news of their own.

After revealing her secret side gig to Annie and Max, Cassie sets out to find the mystery woman who's been impersonating her, and immediately suspects enigmatic new flight attendant Grace. Meanwhile, Annie prepares for a career-changing interview at a progressive LA-based law firm, and, later, Marco and Davey attend Cassie's AA meeting to celebrate her first year of sobriety.

Convinced that a cryptic text bears clues to Megan's location, Cassie jumps on a plane to Reykjavik, and visits haunts from seemingly better times. Meanwhile, Shane grows increasingly suspicious of Cassie's erratic travels. Back in LA, Annie fumbles her way through meeting Max's parents for the first time - but a far worse encounter lurks for the couple.

After learning the cryptic text was actually meant to send her elsewhere, Cassie tries to get Megan safely out of Reykjavik... with help from a surprise assist. Back in LA, the Diazes interrogate Annie and Max, and, later, Cassie fears she's being framed for murder when two bodies are found in Echo Park.

After finding her own - highly incriminating - file in Benjamin's office, Cassie seeks assurances from Shane during their annual flight attendant safety training and continues to evade Marco as mounting stress tests her sobriety. Meanwhile, Max attempts a high-tech hack to track down the Diazes, and Megan searches for a lockbox that holds life-saving evidence against the North Koreans.

While traveling to New York with Davey to pay their mom, Lisa, a visit, Cassie faces hard truths about her path to sobriety. Meanwhile, Megan attempts to reconnect with her reluctant family, who are wary of the web of legal troubles she's entangled them in.

With Shane's help, Cassie runs down a lead in the string of murders - which inexplicably points to her as the main suspect. After encountering a mysterious man with ties to the North Koreans, Megan grows increasingly concerned about her family's safety - and asks Cassie to broker a meeting with the CIA. Meanwhile, Max decodes another cryptic clue, leading to a risky cat-and-mouse chase at the Santa Monica Pier.

Still in shock from the events at the Pier, Cassie manages to get even closer to connecting the dots in a far- reaching conspiracy. After arriving in LA, Megan looks to make amends with Shane - and start a new chapter in her life.