Back
ON-DEMAND DETAIL
Before Mars
This is the backstory of Hana and Joon Seung, characters in the series "MARS" on Nat Geo. The twin sisters are struggling to fit into their new home and find a ham radio, allowing them to develop a friendship with a female astronaut..
More Like This
Discover more titles you may enjoy.
Frequently asked questions
Can I use ZappTV on both mobile and TV?
Yes. ZappTV works on both mobile devices and TVs. Sign in with the same account to enjoy your favorite content across supported devices.
How do I install ZappTV on my TV?
Download and install the ZappTV app on your supported TV or TV box. Once installed, open the app and follow the on-screen instructions to get started.
Is ZappTV free to watch?
ZappTV offers free content for you to enjoy. For access to more channels and on-demand content, you can upgrade to a VIP plan.
