Dr. Edgar Zomboss's Sun Vacuum machine is accidentally destroyed and parts of it sent back and forward in time. Thankfully, crazy Uncle Dave has invented a time machine as well, which means Patrice, Nate, and the Plants can travel through time to fight the Zombies and stop the machine from being reassembled. First stop is ancient Egypt.
General Note
"Originally issued as Plants vs. zombies: Timepocalypse #1 and Timepocalypse #2 by Dark Horse Comics in 2014"--Title page verso.