Lurkers

- Street Pursuit - Luke Richards [Audio Network] (episode intro)

- Piano Steps - Mark Russell (show intro)

- Moon Travel - Miguel Moreno [Audio Network] ("Parasites are organisms that survive by living and feeding off other creatures called hosts.")

CASE 1

- Deep Dive - Manuel Saxinger, Thomas Suessmair (2009, Oregon)

- All in the Round - Mark Sayer-Wade (the family has their own well)

- Spooky Danger - Daniel Backes, Peter Moslener (Kamber begins to violently throw up/vomiting gets worse)

- Added Addiction - Kurt Oldman (Jenni calls the doctor)

- The Stabbing - Scott Marcussen (Kamber's condition has not improved)

- Thunder Drums - Billy Lincoln (Jenni rushes Kamber to the local emergency room)

- Giving You the Creeps - Daniel Backes, Peter Moslener (Kamber placed on I.V. fluids/Kamber discharged)

- The Hideout - Brad Smith (Kamber's vomiting returns)

- Behind You - Ralv Gielen (Jenny calls the doctor for help the next morning)

- Minor Threat (a) - Baxter Poe, Stan Hope (Kamber crawls into the kitchen and vomits again)

- Full Impact - Dusty Grey, William Smith (Jenni tries to rush to Portland)

- Snake Danger - Steve Everitt (Kamber becomes unresponsive)

- Chased By Evil - Robert Bennett ("3-year-old Kamber Hastings has been struck down by a devastating bout of vomiting and diarrhea.")

- Crime Lab - Scott Marcussen (enter Dr. Meghan Kinealy/Kamber has lost a third of her body weight)

- The Beauty of It All - Steve Everitt (Kamber's stool samples begin testing)

- Piano Mystery Fall - Steve Everitt (results come back)

- Grim Countdown - Baxter Poe, Josh Mobley, Stan Hope; Victims Memory - Lois Blanca [Cezame Music Agency] (Kamber tests positive for cryptosporidium)

- Psycho 32 - Bernhard Hering, Martin Wester, Matthias Kruger [UBM Music] (explanation of what cryptosporidium does/Kamber placed on powerful anti-parasitic drugs)

- Psycho 28 - Bernhard Hering, Martin Wester, Matthias Kruger [UBM Music] ("But Kamber isn't the only one in danger.")

- Razor Sharp - Billy Conrad, Sam Keaton (life cycle of the cryptosporidium parasite)

- Red Peril Down - Steve Everitt ("The most common way for cryptosporidium to infect a human is through contaminated water.")

- From the Shadows - Guy Skornik, Elisabeth Skornik [Cezame Music Agency] (Jenni gets a call from the county health department)

- Dark Pulse 11 - Bernhard Hering, Martin Wester, Matthias Kruger (health officials arrive)

- Aliens Crush Man - Bill Brown (Hastings' water source is contaminated with cryptosporidium)

- Endless Dunes - Daniel Backes, Peter Moslener (Kamber recovers/how to avoid cryptosporidium)

- Damp Alley - Baxter Poe, Stan Hope, Thomas Hirschmann ("Cryptosporidium isn't the only microscopic parasite that lurks around us.")

CASE 2

- Lovers Remain (Underscore) - Alejandro Saldarriaga-Valencia, Guillermo De La Barreda, Nicolas Barry, Rene Garza, Tomas Jacobi (Fall 2007, Murrieta, California)

- Minor Threat (a) - Baxter Poe, Stan Hope ("It's early November.")

- Terminate - Anthony Phillips (Matt returns home ill/Matt's symptoms don't improve after five days)

- Medusa Touch - Steve Everitt (Matt complains of an intense headache)

- The Hideout - Brad Smith (Sherry takes Matt to the emergency room)

- Nocturnal Percussion - Mark Sayer-Wade (meningitis)

- Lonely Riding - Daniel Backes, Peter Moslener [UBM Music] (two weeks later, Matt is still no better/Sherry and Matt return to the emergency room)

- Chased By Evil - Robert Bennett (hole drilled into Matt's skull)

- Smoke & Mirrors - Steve Martin (Inside the Monster)

- The Human Animal - Florian Moser ("Firefighter Matt Moore is suffering from a mysterious brain disease.")

- The Calling - Guy Skornik, Elisabeth Skornik [Cezame Music Agency] (doctors give Matt powerful antibiotics)

- Web of Intrigue - Andrew Britton, David Goldsmith (Matt's fellow firefighter Mike Samuels comes to visit)

- Distant Spaces - Daniel Backes, Peter Moslener [UBM Music] (doctors scan Matt's brain, which reveals lesions/the location of Matt's lesions makes it impossible to operate on)

- Fade to Black - Daniel Backes, Peter Moslener [UBM Music] (two weeks later, a scan reveals the lesions are growing, making Matt's headaches worse)

- Distant Spaces - Daniel Backes, Peter Moslener [UBM Music] (Matt rushed to the University of California Hospital in San Diego/enter Dr. Jayant Menon)

- The Fear Within - Guy Skornik, Elisabeth Skornik [Cezame Music Agency] ("Only a biopsy will reveal the truth.")

- Under Surveillance - Guy Skornik, Elisabeth Skornik [Cezame Music Agency] (location of Matt's lesion makes surgery impossible)

- Toxic Element - Arnaud Rozenblat, Daniel Finot [Cezame Music Agency] (new MRI reveals a new lesion that is in an area that is more accessible)

- War Torn - Brad Smith (Matt wheeled into surgery)

- Killers Breath - Guy Skornik, Elisabeth Skornik [Cezame Music Agency] (a large portion of Matt's brain is dead)

- Fearless - Dan Skinner, Adam Skinner [Audio Network] (lab results come back)

- Asteroid - Nick Ingman, Terry Devine-King [Audio Network] ("Firefighter Matt Moore is in the hospital battling for his life.")

- ? (balamuthia mandrillaris)

- The Trial - Guy Skornik, Elisabeth Skornik [Cezame Music Agency] ("Inside the brain, balamuthia mandrillaris feeds on brain tissue.")

- Grave Danger - Takeshi Furukawa ("But how did the amoeba get inside Matt's brain?")

- Dark 5 - Bernhard Hering, Martin Wester, Matthias Kruger (how balamuthia mandrillaris infects people)

- Threatening Thoughts - Florian Moser (Matt likely got the parasite while fighting a wildfire)

- Homicide - Bob Bradley [Audio Network] (Matt's autoimmune condition allowed the parasite to invade him/only a handful of people have survived this parasite)

- Distant Harp - Daniel Backes, Peter Moslener [UBM Music] ("4 weeks later, Matt is on life support."/the family makes the decision to stop Matt's life support)

- A Path Not Taken - Anthony Phillips (Matt loses the battle/aftermath of Matt's death/firefighters across Southern California salute their fallen comrade)

- Creeping Shadow - David O'Brien [Audio Network] (balamuthia mandrillaris is extremely rare/balamuthia mandrillaris isn't the only parasite that lurks in the soil)

CASE 3

- Reality Investigation - Ronni Shaw (2003, Oregon)

- Lethal Knocking - Daniel Backes, Peter Moslener [UBM Music] (Keysha wakes up to really bad depth perception)

- Chased By Evil - Robert Bennett (Keysha's depth perception is so bad, she almost trips down the stairs)

- Buried Alive - Barrie Gledden, Richard Kimmings [Audio Network] (Keysha decides not to tell her mom)

- Death Star - Nick Ingman, Terry Devine-King [Audio Network] ("High school student Keysha Kendall has been having trouble with her eyesight.")

- Psycho 32 - Bernhard Hering, Martin Wester, Matthias Kruger [UBM Music] (four weeks later, Keysha notices her left eye looks different)

- Crime Race - Alex Kharlamov, Lennie Moore (one afternoon at band practice, Keysha's eyesight gets worse)

- Fearless - Dan Skinner, Adam Skinner [Audio Network] (two weeks later, the family celebrates Keysha's older sister's birthday/Amy notices a problem with Keysha's left eye)

- Glitch Glimmer - Baxter Poe, Josh Mobley, Stan Hope (Amy rushes Keysha to the eye doctor)

- Ghost Chaser - Billy Lincoln (doctor tells the family he's made an emergency appointment)

- Street Patrol - Terry Devine-King [Audio Network] (enter Dr. Jonathan Yoken)

- Atomic Reaction - Denis Levaillant (explanation of the retina)

- Aorta - Igor Dvorkin, Duncan Pittock [Audio Network] (Dr. Yoken sees multiple cyst-like structures)

- Dark Forces 2 - Terry Devine-King [Audio Network] ("I didn't know how to react.")

- Brassaville - Steve Everitt (doctor explains Keysha needs her eye operated on)

- Enemy at the Gates - Steve Everitt ("Dr. Jonathan Yoken has just detected a mysterious cluster of cysts inside Keysha Kendall's left eye.")

- Ambient Flow - Daniel Backes, Peter Moslener (Keysha prepped for surgery)

- Lethal Knocking - Daniel Backes, Peter Moslener [UBM Music] (Dr. Yoken makes an incision in Keysha's left eye)

- Aliens Crush Man - Bill Brown (doctors make a terrifying discovery)

- Under Surveillance - Guy Skornik, Elisabeth Skornik [Cezame Music Agency] (taenia crassiceps)

- Dark March - Daniel Backes, Peter Moslener [UBM Music] (what the taenia crassiceps parasite does)

- Darkness in the Alley - Scott Marcussen (life cycle of the taenia crassiceps parasite)

- Homicide - Bob Bradley [Audio Network] (doctors believe Keysha got the parasite while gardening)

- Crime Without Passion - Steve Everitt (doctor explains the retina is too badly damaged)

- Equations - Dusty Grey, William Smith (parasite has changed Keysha's life/how to avoid taenia crassiceps)

- Medieval War - Bill Brown ("Everywhere on the planet, parasites are on the hunt.")

- Smoke & Mirrors - Steve Martin (ending screen)