As attacks on Sweden worsen and the military is activated, people begin crashing their cars in the rain and Alex returns to help Anna and her family.
After the Parliament is destroyed and communications networks become unavailable, Anna's mother, a government minister, manages to escape Stockholm and heads into the country, where she is rescued by the military.
Meanwhile, Alex's father Björn, who works at a transformer station, kills a group of armed men who are attacking the electricity network.
Helicopters and dead birds crash to the ground, apparently affected by contaminated rain, and civilians come to the station seeking safety in its bomb shelter.
In the village church, which has been destroyed and is on fire, Alex tells Anna that Kim is still alive, then plays the piano until he loses his memory due to chemical weapons in the rain.
[9] It features a version of the Swedish traditional summertime hymn Den blomstertid nu kommer, after which the film is named.
The Swedish title of the film is the name of a traditional hymn strongly associated with summer, Den blomstertid nu kommer.