Lego Iron Man Malibu Mansion Attack featuring Tony's lab and the Mandarin's helicopter.
Includes five minifigures: Tony Stark, Mark 42 Armor, Pepper Potts (exclusive to this set), the Mandarin and Extremis soldier. And the brick built Jarvis who isn't really a minifig but kinda is.
364 pieces ($0.0769 per piece which is outstanding for a licensed set).
Many other Lego sets also on sale, mostly thanks to Target's 20% off all Lego sets this week. Amazon will often price match if you report the lower price.