The Second City, Chicago’s famous sketch comedy company, is back in town at Woolly Mammoth Theatre with a show called “Spoiler Alert: Everybody Dies.” Given the nature of its comedy, Second City doesn’t use a plot to connect its sketches, just a theme. This year’s theme is the fact that fate is inevitable, that there’s an end to life for everyone and while we’re waiting for that end, there are tsunamis and nuclear collapses to experience.

But Second City attacks the grim subject with a sardonic smile. The humor they use to make their point is sometime goofy, sometimes philosophical, sometimes black, sometimes just plain weird.