This is a short interlude mission in Assassin's Creed IV Black Flag
Takes place between Sequence 1 and Sequence 2
This brief interlude takes place in modern day, inside the Abstergo Entertainment building in Canada
You get a brief context on who you are: a sort of software tester for a virtual reality simulation, exploring the memories of the pirate Edward Kenway
You also get introduced to a few tools, such as your communicator.
All you have to do here is follow the red-headed lady, and eventually you will be get back to the Animus and begin Sequence 2 in Havana
You can also explore a bit if you want, and review some files such as the employee passports