September may mean a return to routine, but for TV fans it signals new seasons, premieres, and binge nights that make autumn feel cinematic.

Disney+: Only Murders in the Building

The Emmy-winning comedy series returns for its fifth season on September 9 with a triple-episode premiere. Steve Martin, Martin Short, and Selena Gomez once again investigate a suspicious death at the Arconia, uncovering a web of secrets tied to billionaires, mobsters, and mysterious neighbors. Guest stars include Meryl Streep, Da’Vine Joy Randolph, Richard Kind, Nathan Lane, Bobby Cannavale, Renée Zellweger, Logan Lerman, and more. Episodes will then stream weekly.

Channel 4 / Cosmote Series HD: In Flight

This new action thriller follows a fearless flight attendant whose life unravels after her son is convicted of a murder he claims he did not commit. Forced into smuggling heroin across international flights, she faces corrupt police and hired killers while fighting for her family. Starring Katherine Kelly, the six-part series premieres in Greece on September 12 at 22:00 with a double episode on Cosmote Series HD.

Apple TV+: The Morning Show

Jennifer Aniston and Reese Witherspoon return in the fourth season, debuting September 17. Set in spring 2024, two years after season three, the newsroom confronts the aftermath of a corporate merger, hidden agendas, and questions about truth in a polarized America. The season tackles deepfakes, conspiracy theories, and corporate cover-ups. Cast members include Billy Crudup, Marion Cotillard, Jeremy Irons, John Hamm, and others.

Netflix: The Billionaires’ Fortress

Premiering September 19, this Spanish thriller centers on feuding families of billionaires who take refuge in a luxury underground compound during a global conflict. Tensions escalate as secrets surface and unexpected alliances form. Cast includes Miren Ibarguren, Joaquín Furriel, and Natalia Verbeke.

Netflix: The House of Guinness

Launching September 25, this historical drama created by Steven Knight chronicles the Guinness dynasty in 19th-century Dublin and New York. Following the death of Sir Benjamin Guinness, the series explores the inheritance struggles of his children—Arthur, Edward, Anne, and Ben—as well as the brewery’s profound social impact. Cast members include Anthony Boyle, Louis Partridge, and Emily Fern.

Disney+: Everything Goes

This upcoming legal drama from Ryan Murphy, premiere date TBA, casts Kim Kardashian in a surprising lawyer role alongside Naomi Watts, Glenn Close, Sarah Paulson, Niecy Nash-Betts, and others. The story follows a group of women divorce attorneys who leave a male-dominated firm to launch their own powerhouse practice, navigating high-stakes cases, scandals, and fragile alliances.