This is a timeline of the backstory in The Last Stand: Dead Zone.
Day 000 - Sharp rise in hospital admissions in outlying towns around Union City. Hundreds of cases with identical symptoms emerge.
Day 001 - Local news networks from locations outside the city report a suspected pandemic.
Day 002 - Attacks by infected are reported as random assaults and murders. Local law enforcement request additional support from surrounding counties.
Day 003 - Government agencies are made aware of possible "outbreak" on the eastern seaboard.
Day 004 - Homeland Environmental Risk Control agency are assigned to investigate of suspected outbreak.
Day 005 - Homeland Environmental Risk Control (HERC) reacts to initial reports by deploying investigative teams to locations surrounding Union City.
Day 006 - Civilians in the towns of Glendale and Claysburg begin evacuating to Union city without direction from law enforcement.
Day 007 - Jonestown, Glendale and Whistler's Grove law enforcement officially request government aid.
Day 009 - Death toll from unknown virus reaches 10,000. General panic rises, looting and random acts of violence rise sharply.
Day 010 - Government declares a state of emergency in the town of Glendale. Claysburg and Jonestown follow shortly after.
Day 011 - HERC presence in Union City is first noticed. Clashes occur between civilians and enforcement agents as areas are designated for quarantine.
Day 013 - Government acknowledge civil unrest caused by infection outbreak. Request that civilians stay in their homes and await further instruction.
Day 015 - Reports from outside of the state of similar outbreaks are televised.
Day 016 - Law enforcement in co-ordination with HERC work to isolate civilians who occupied hospitals and public spaces.
Day 018 - First recognized re-animation occurs at Glendale hospital under the supervision of HERC doctors.
Day 019 - News reports begin detailing how transfer of the infection occurs.
Day 021 - The town of Glendale in the east of the state is officially quarantined entirely. HERC and US military forces take control.
Day 022 - Reports of refugees from Glendale being fired on and killed by troops when trying to escape the exclusion zone.
Day 023 - Road access into Union City is restricted in an attempt to stem the flow of infection.
Day 024 - Early blackouts occur in the greater Claysburg county as power plants in the south are abandoned.
Day 025 - HERC operations on the edge of Union City end in violent encounters with a number of civilians recorded as KIA. All were found to be infected.
Day 026 - Glendale is declared a disaster area. Government troops are reportedly overrun. It is unclear if this occurred at the hands of civilians or the infected.
Day 027 - Estimated infection rate reaches 60%. Martial Law is finally ordered in Union City.
Day 028 - Residents of Union City are advised to evacuate to the stadium on the northern side of the canal.
Day 029 - HERC in line with the military act to quarantine larger sections of Union City.
Day 030 - Containment proves difficult areas in Brookvale and the outlying Whistler's Forest community suffer breaches and are overrun.
Day 031 - Breaches in 6 of the 10 containment zones inside Union City occur. Infection gathers pace.
Day 035 - All internal roads and bridges are sealed by the military following breaches overnight. Reports of HERC troops firing on civilians are heard.
Day 038 - Claysburg and Jonestown are reported as being overrun.
Day 040 - Reinforcements from nearby Fort Tran are deployed to Union City.
Day 043 - The last remaining TV broadcast goes off the air, radio transmissions follow just a few days later.
Day 045 - Emergency broadcast system comes into effect.
Day 046 - Government evacuations are signaled to cease within the following 40 days.
Day 047 - Military forces dissolve within Union City. HERC paramilitary division remains to help maintain research operations.
Day 055 - Union City falls into darkness as the last of the region's power plants are abandoned.
Day 060 - Estimated infection rates reaches 95% - HERC officially withdraw from the area.
Day 062 - Explosions occur in the eastern bay and on the canals as dozens of ships are sunk.
Day 063 - Air traffic ceases. Evacuations by any means are no longer available despite the 40 days allowance.
Day 066 - Reconnaissance aircraft are sighted in the skies above Union City. Unmarked - possibly HERC.
Day 070 - Bombs fall on Union City. The attacks are orchestrated and designed to wipe out remaining citizens along with the infected.
Day 075 - Water supply to the city is disrupted - it is unknown if this is due to the bombing or if this occurred outside the city walls.
Day 081 - A secondary round of bombing occurs - targeting residential districts. Survivors on the ground are driven out.
Day 100 - Surveillance aircraft are seen investigating survivor movements within Union City.
Day 150 - City is declared a Dead Zone. All involvement is withdrawn. Survivors left to own means.
Day 155 - Discovery of automated HERC defenses surrounding the outskirts of the city are made. Containment continues.
Day 190 - All hope of rescue or escape has faded. Survivors begin setting in groups within the Dead Zone.
Day 200 - Dr Phillip Best - a turned HERC scientist discovers that most survivors have a natural defense against the virus.
Day 203 - Significant clash between two survivor packs in the Bricks region result in 10 dead.
Day 350 - Survivors began grouping and then acting on their own.