House of M

Writer: Brian Michael Bendis
Penciller: Olivier Coipel
Inker: Tim Townsend
Colourist: Frank D'Armata
Letterer: Chris Eliopoulos
Publisher: Marvel Comics

What's it about?

Wanda Maximoff, aka the Scarlet Witch, is a mutant with magical, reality-altering powers.  After a traumatic event wherein she kills some of her fellow Avengers, the X-Men decide that she needs to be reined in.  Her brother Pietro, aka Quicksilver (he's a speedster), and her father Magneto (the X-Men's main enemy), want to save her and so spirit her away.  The Avengers and the X-Men go in search of the missing family but before they find anyone the world turns white and changes.  Suddenly, mutants are in charge.  They are running things and aren't victimised.  Magneto is a sort of benevolent leader and homo sapiens (us normal humans) are the oppressed.

Only Wolverine can remember how things used to be, so he sets out to put things right.

Marvel: Civil War

Writer: Mark Millar
Penciller: Steve McNiven
Inker: Dexter Vines
Colourist: Morry Hollowell
Letterer: Chris Eliopoulos
Publisher: Marvel

What's it about?
A group of young heroes accidentally kill themselves and 600 civilians. This alarms the government who introduce the Superhuman Registration Act - everyone with powers must register with the government and become paid operatives of S.H.I.E.L.D.  If you don't comply, you'll be arrested and charged with treason.

This Act splits the heroes. Iron Man, Spider-Man, Reed Richards of the Fantastic Four, She-Hulk and others are in support of the Act.  Most of the X-Men, Captain America, Nick Fury and others oppose it.  As the supporters are hired to bring in those that don't comply, the opposing faction go underground.

The book builds on and references other key events in the Marvel universe but you don't need to know about these to read it.  The other events are used to build the case for the Act and explore the moral quandary that the Marvel universe finds itself in.   The supporters believe registration is necessary to ensure new heroes are adequately trained and to ensure a measure of accountability.  The opposers believe that heroes shouldn't be beholden to government (what if government fucks up?) and that registration puts their loved ones at risk. 

Thor

Writer: J. Michael Straczynski
Penciller: Olivier Coipel
Inker: Mark Morales
Colourist: Laura Martin and Paul Mounts
Letterer: Chris Eliopoulos
Publisher: Marvel

What's it about?
The Gods are dead.  Destroyed in the last great battle, Ragnarok, Thor exists in the void.  Called back to a shadowy dreamscape by Donald Blake, his human alter-ago, they consider their role in life, or even ifthey desire a life. To live, to return to earth, proves a sweet temptation for Thor and so he returns.  The other Gods are asleep, trapped in human bodies and Asgard has to be rebuilt.  As Thor travels the earth searching for his lost brethren he discovers the tragedies that have beset mankind in his absence, and comes across a few old enemies.

nextwave: Agents of H.A.T.E vol 1: This Is What They Want

Writer: Warren Ellis
Penciller: Stuart Immonen
Colourist: Dave McCaig
Inker: Wade von Grawbadger
Letterer: Chris Eliopoulos and Joe Caramagna
Publisher: Marvel 

What's it about?
nextwave is a collection of five superpowered (and odd) people working for H.A.T.E - the Highest Anti Terrorism Effort.  From the blurb:
Monica is gonna microwave your shit!
Tabby is gonna steal your stuff!
Aaron is gonna organise your sock drawer!
Elsa is gonna speak with an accent!
The Captain! His name is the Captain!