S08E07: Special: Invisible Killers
Jeremy Wade has hunted down freshwater killers for 30 years, but those waters are infested with darker, deadlier creatures - parasites.
Previous Episode 
Season 1
Piranha
S1E1 / 05 Apr 2009
Killer Catfish
S1E2 / 12 Apr 2009
Alligator Gar
S1E3 / 19 Apr 2009
European Maneater
S1E4 / 26 Apr 2009
Amazon Assassins
S1E5 / 03 May 2009
Amazon Flesh Eaters
S1E6 / 10 May 2009
Freshwater Shark
S1E7 / 17 May 2009
Season 2
Death Ray
S2E1 / 25 Apr 2010
Killer Snakehead
S2E2 / 02 May 2010
Congo Killer
S2E3 / 09 May 2010
Alaskan Horror
S2E4 / 16 May 2010
Rift Valley Killer
S2E5 / 23 May 2010
Hidden Predator
S2E6 / 30 May 2010
Demon Fish
S2E7 / 31 May 2010
Season 3
The Mutilator
S3E1 / 10 Apr 2011
Flesh Ripper
S3E2 / 17 Apr 2011
Silent Assassin
S3E3 / 24 Apr 2011
Chainsaw Predator
S3E4 / 01 May 2011
Electric Executioner
S3E5 / 15 May 2011
Cold-Blooded Horror
S3E6 / 22 May 2011
Jungle Killer
S3E7 / 30 May 2011
Season 4
American Killers
S4E1 / 01 Apr 2012
Pack of Teeth
S4E2 / 08 Apr 2012
Invisible Executioner
S4E3 / 15 Apr 2012
Asian Slayer
S4E4 / 22 Apr 2012
Russian Killer
S4E5 / 06 May 2012
Mongolian Mauler
S4E6 / 13 May 2012
Phantom Assassin
S4E7 / 20 May 2012
Lair of Giants
S4E8 / 28 May 2012
Season 5
Face Ripper
S5E1 / 19 May 2013
Atomic Assassin
S5E2 / 14 Apr 2013
Killer Torpedo
S5E3 / 21 Apr 2013
Colombian Slasher
S5E4 / 05 May 2013
Vampires of the Deep
S5E5 / 12 May 2013
Legend of Loch Ness
S5E6 / 27 Apr 2014
Season 6
Amazon Apocalypse
S6E1 / 06 Apr 2014
Jungle Terminator
S6E2 / 13 Apr 2014
River of Blood
S6E3 / 20 Apr 2014
Man-Eating Monster
S6E4 / 04 May 2014
Bone Crusher
S6E5 / 18 May 2014
Body Snatcher
S6E6 / 26 May 2014
Season 7
Canadian Horror
S7E1 / 05 Apr 2015
Mekong Mutilator
S7E2 / 12 Apr 2015
Prehistoric Terror
S7E3 / 19 Apr 2015
Alaska's Cold Water Killer
S7E4 / 26 Apr 2015
South Pacific Terrors
S7E5 / 10 May 2015
Africa's Deadliest
S7E6 / 17 May 2015
Season 8
Deep Sea Demon
S8E1 / 07 Apr 2016
Death Down Under
S8E2 / 14 Apr 2016
Razorhead
S8E3 / 21 Apr 2016
Terror in Paradise
S8E4 / 05 May 2016
Devil of the Deep
S8E5 / 26 May 2016
Special: Invisible Killers
S8E7 / 12 May 2016
Season 9
Killers From the Abyss
S9E1 / 23 Apr 2017
Ice Cold Killer
S9E2 / 30 Apr 2017
Coral Reef Killer
S9E3 / 07 May 2017
Return of the Killer Catfish
S9E4 / 14 May 2017
Volcanic Island Terror
S9E5 / 21 May 2017
Malaysian Lake Monster
S9E6 / 28 May 2017
