When all of the groom's relatives asphyxiate at a wedding, the Fringe division investigates and quickly ascertain that a human agency is responsible. Walter realizes that the formula for the toxin was based on research conducted by his father, Robert Bischoff, and that the killer isn't stopping with a single test of his lethal concoction.
| Creator | Alex Kurtzman |
|---|---|
| Actor | Anna Torv, Joshua Jackson, Jasika Nicole |
| Country | United States of America |
| Production | Warner Bros. Television |