Tom Wegman was contacted by Curtis Manning of CTU Los Angeles and ordered to evacuate the hospital because of an immanent terrorist threat. Curtis arrived with a TAC team and worked with Wegman to stop Viktor Grigorin, a Dawn Brigade separatist working for Vladimir Bierko, from releasing Sentoxnerve gas in the hospital. One of Wegman's subordinates spotted Grigorin on a security monitor, so Wegman reported this to Manning. Curtis and a Chemical Response Team isolated the nerve gas container, foiling the attack, but Bierko was successful in distracting CTU long enough to plan a gas attack on the CTU LA building itself.
