From publisher blurb:
"And I beheld when he had opened the sixth seal, and lo, there was a great earthquake: and the sun became black as sackcloth of hair, and the moon became as blood"
The Sixth Seal is a supplement for M&M Superlink that focuses on how heroes deal with a disaster of epic proportions and its apocalyptic aftermath. It contains several adventures that can be played together as a story arc or individually, at the GM's discretion.
Section 1 sets the scene and has adventure scenarios that take place in the immediate aftermath of the earthquake.
Section 2 gives background information on life in the wake of the disaster.
Section 3 provides adventure scenarios that take place a few weeks or even months after the quake strikes, when civilization has effectively collapsed.
In addition, The Sixth Seal provides several additional "Seasoning encounters" - straightforward, quick-play adventure scenarios that provide additional depth or flavor, and an alternate plotline in which the earthquake only impacts the heroes' home city, rather than the nation as a whole.