| # | Air Date | Episode Name | Watched? |
|---|---|---|---|
| E1 | Jan 02, 2026 | ||
| E2 | Jan 02, 2026 | ||
| E3 | Jan 02, 2026 |
Drain the Oceans has maintained a steady Annual rhythm for 6 years, typically returning in May. Since its debut in 2018, this National Geographic flagship has become a staple of the network spring schedule. The series leverages advanced sonar technology and CGI to visualize sunken history, making it a reliable performer for the channel. Its consistent release schedule across May and June ensures that it anchors the transition into the summer television season.
The production cycle for the series is remarkably consistent, with National Geographic commissioning new batches of episodes every twelve months. While some seasons have shifted slightly into March or June, the core release window remains firmly planted in the second quarter of the year. This predictability has allowed the show to build a dedicated audience that expects fresh underwater archaeological insights annually.