The hit drama will return to Showtime in the US on September 30. Channel 4 has picked up the rights to air season two in the UK, with a late 2012 broadcast planned.
The first clip features Nicholas Brody (Damian Lewis) and the tagline, 'His mission hits home', while the second focuses on Carrie Mathison (Claire Danes) and includes the quote, "You lay low, then you come to life".
True Blood and Dexter actress Valerie Cruz was recently cast in Homeland as Major Joy Mendez, Carrie's contact in Beirut.
Tim Guinee (The Good Wife) and Zuleikha Robinson (Lost) are among the other new cast additions joining the drama for season two.
Navid Negahban (Abu Nazir) and David Marciano (Virgil) have also been promoted to series regulars.
> Homeland star Damian Lewis: 'I don't mind playing unlikeable roles'
Watch the first teaser for Homeland's second season below: