The third and final movie in a trilogy.

Due to his love for small, cute things, Souta Takanashi cannot turn childlike Popura Taneshima down when she recruits him to work for Wagnaria, a family restaurant located in Hokkaido. Takanashi takes particular joy in doting on the older Popura, which only fuels her complex over how young she looks. He also quickly learns he must stay on his toes once he meets the rest of his colleagues, including the katana-wielding floor chief Yachiyo Todoroki, the intimidating head chef Jun Satou, the dangerously well-informed and subtly sadistic sous chef Hiroomi Souma, the adamantly lazy manager Kyouko Shirafuji, and the waitress Mahiru Inami who has a "painful" fear of men. Powered by an eccentric cast, Working!! is a unique workplace comedy that follows the never-dull happenings within the walls of Wagnaria as Takanashi and his co-workers' quirky personalities combine to create non-stop antics, shenanigans, and hilarity. [Written by MAL Rewrite]

The boisterous student Kaname Chidori and soldier Sousuke Sagara are enjoying a blissful high school life. However, their peaceful days are disrupted by the threatening terrorist organization Amalgam. Leonard Testarossa, a member of the organization who possesses "Whispered," seeks to procure Kaname and her knowledge. Kaname and Sousuke's battle against Amalgam starts right in their own neighborhood, which eventually takes them on a hunt around the world. From the exotic lands of Laos to the barren Mexican coast, Sousuke must gather intelligence to bring down Amalgam. Meanwhile, Kaname's abilities grow, but so does her frustration as her resolve withers. Caught up in an intense game of hide and seek, as well as strategic plots, the pair try to connect and push beyond their own limits. [Written by MAL Rewrite]

Ryo Saeba (aka the City Hunter), is a private detective in the city of Tokyo. Together with sidekick Kaori Makimura, Ryo is hired by actress Emi Makaze to find her long lost brother. The woman's brother turns out to be "The Professor", a dillusional ex-soldier who's planing to destroy the Shinjuku district of Tokyo. Kaori is assigned to guard Emi, but they both get caught up in the Professor's scheme. The City Hunter must save them, without allowing downtown Tokyo to be destroyed. 

(Source: ANN)