DW Story?

Sprout:Cosmo! Look outside the window! Cosmo:Why? Sprout:Just look! Cosmo:Why are they dead with purple skin?! Sprout:I don't know but.. we should go outside? Cosmo:But let's wear masks first? Sprout:Your right and wear safety stuff. Cosmo:Sure.. Outside Sprout:I'm glad we wore this. Cosmo:Yeah and the fog is blue? Sprout:I'm not sure but-.. ALARM:ATTENTION THERE'S A DANGEROUS PLAGUE GOING OUTSIDE Cosmo:Huh?! A new plague?! Sprout:First plague I've ever seen in my life. Everything is so..