This nine minute video aims to give viewers the "Assassin's Creed 4 101", so if you haven't been paying attention to date, now's your chance to see what the fourth entry offers.
You'll notice a sidebar on the trailer; you can click through to check out the various story and mechanic sections.
If gameplay doesn't do it for you, why not check out the launch trailer, which dropped earlier today?
Assassin's Creed 4: Black Flag has a messy release schedule; it's coming to PlayStation 3 and Xbox 360 worldwide on October 29. The PC version ships out between November 19 and 22; the Xbox One version drops on the console's launch date of November 22; and the PS4 version is also due in time for hardware launch day; November 15 in North American and November 22 in Europe. The Wii U version arrives alongside the other platforms in November.