S4.E1 ∙ TB or not TBMon, Mar 3, 2008A farming community accumulates serious injuries after the locals suddenly stop feeling pain.8.2/10 (43)Rate
S4.E2 ∙ La ConsecuenciaSun, Mar 9, 2008Bob is revived from the coma and remembers little about what transpired in Roth's lab.7.9/10 (36)Rate
S4.E3 ∙ Hep Burn and MelinkovSun, Mar 16, 2008Wes comes in contact with a needle tainted by a genetically engineered strain of hepatitis C.8.2/10 (37)Rate
S4.E5 ∙ Suspicious MindsSun, Mar 30, 2008A city Councillor blames Muslim extremists for poisoning his daughter.8.0/10 (34)Rate
S4.E6 ∙ Race FeverSun, Apr 6, 2008Cyclists are hospitalized as the result of a mysterious outbreak.7.9/10 (33)Rate
S4.E7 ∙ Hearts and MindsSun, Apr 13, 2008A pharmaceutical company is scrutinized concerning a deadly side effect.8.2/10 (31)Rate
S4.E8 ∙ Brood 14Sun, Apr 20, 2008Crows wage attacks on military airports, prompting an investigation.8.3/10 (34)Rate
Top-ratedS4.E9 ∙ UnbottledSun, Apr 27, 2008Terrorists take over the lab and force the team to create materials for use in chemical-warfare munitions.8.4/10 (35)Rate
S4.E10 ∙ What It Feels LikeSun, May 4, 2008Parents of a sick child reach out to Mayko.8.1/10 (33)Rate
S4.E11 ∙ BloodlessSun, May 11, 2008A young boy's murder probe links the victim to an extinct prehistoric cat.7.7/10 (32)Rate
Top-ratedS4.E12 ∙ The Sounds of ScienceSun, May 18, 2008Carlos finds an atrocity while investigating an outbreak in Moldova.8.5/10 (33)Rate