The plot under the hood. The third film in the "28 Days Later" franchise.. The sequel was originally going to be called "28 Months Later" and continued the theme of the film’s title, which was set in the timeline. However, since so much time had passed since we last returned to this world in 2007 (28 Weeks Later), it was decided that it would be more appropriate to call the film "28 Years Later". 28 Years Later Part II: Temple of Bones was announced