The Underworld

Where to Watch The Underworld Season 1 Episode 21 Online Free - Episode 21

Stream The Underworld Season 1 Episode 21 online free on MyFlixer. This episode, "Episode 21", is available through several HD servers, works on phones, tablets and smart TVs, and never asks for an account or a credit card.

The Underworld is a crime and mystery series that first aired on August 30, 2026 on Tencent Video. The series stars He Jianqi, Wu Nien-hsuan, Keung Ho-man and Tong Man-lung. So far it spans 1 season and 26 episodes and its current status is "Ended". Season 1 has 26 episodes, and episode 21 originally aired on September 10, 2026.

About the series: In the thriving but crime-ridden city of Shicheng, undercover officer Ling Che reluctantly joins forces with gangster Shen Yanlin. As they pursue the truth behind a series of criminal conspiracies, they uncover corruption, betrayal, and secrets that blur the line between law and crime.

All episodes of The Underworld are organised by season on MyFlixer, so you can binge from the pilot to the latest episode in HD. Scroll down for the full Season 1 list and for similar shows such as The Chelsea Detective, 77 Sunset Strip and 21 Jump Street.

The Underworld Season 1 FAQ

Is The Underworld Season 1 Episode 21 free to watch on MyFlixer?

Yes. Every episode of The Underworld, including Season 1 Episode 21, streams free in HD on MyFlixer (MyFlixerz) with no registration.

How many episodes are in Season 1 of The Underworld?

Season 1 of The Underworld has 26 episodes, and all of them are listed on this page with direct watch links.

When did The Underworld Season 1 Episode 21 air?

Episode 21 of Season 1 ("Episode 21") first aired on September 10, 2026.

Can I watch The Underworld on my phone or TV?

Yes. The MyFlixer player works in any modern browser on Android, iPhone, iPad, laptops, desktops and smart TVs, with no app to install.