Plot summary
The team is sent to investigate and help with the recovery at a train crash; however, the train is carrying dangerous chemicals. Guest stars include Antonio Fargas, Lourdes Benedicto and Tony Amendola. Note: During its original run, David Krumholtz gave a public service announcement stating that the episode was not in fact based on a similar train crash in the California area that occurred after taping, but before the episode aired. Mathematics used: Infotaxis and swarm robotics
Credits
Adapted from Wikipedia contributors, Numbers season 5. HTML formatting and reference markers removed.