A city's water supply is poisoned by an unknown toxin- causing rapid illness and panic.
Identify the toxin using portable lab equipment and knowledge of local industries. Synthesize an antidote based on the toxin's structure- if possible- prioritizing children and elderly first.
Isolate the contaminated water source and reroute clean water from a backup reservoir or neighboring city via emergency infrastructure. Begin rationing clean water immediately.
Use computational modeling to predict the toxin's spread and identify high-risk areas. Develop a filtration system using readily available materials like charcoal and sand to remove the poison from usable sources.
Declare a state of emergency- mobilize medical personnel- and establish quarantine zones. Distribute emergency water purification tablets and educate the public on sanitation protocols.
Identify and confront the individual or group responsible- compelling them to reveal the antidote's formula or method of production by any non-lethal means necessary.
Silent- unseen foe-Life's stream turned to bitter draught-Hope in knowledge blooms.