The heroes go on a dangerous quest in search of the first Triumbric Stone; Angor Rot creates a charm that links Barbara and Strickler's fates.
Tropes for this episode include:
- Bait the Dog: Strickler comforts Barbara over their tea date about Jim. Then he drugs their teas with a charm that binds their fates, and reveals to Jim that if he dies, then Barbara dies.
- Big "SHUT UP!": Jim and Strickler say this to Steve while they argue with each other.
- Break the Haughty: By the time Jim and Strickler are done fighting, a confused, terrified Steve bursts into tears and apologizes for the poo jokes he made in class.
- Chekhov's Gun:
- Toby's tacos, which he brought as a trip snack.
- The stomach's "backdoor."
- Chekhov's Lecture: The coach gives a semi-accurate lecture about the digestive system, emphasizing how slow it can be. Toby remembers this when Gatto swallows him and Blinky.
- Chekhov's Skill: Claire's ability to solve riddles. She manages to answer Gatto's before he counts down to the last second.
- Death Glare: Between Jim and Strickler as the former leaves the latter's office.
- Drives Like Crazy: Blinky gets a little too into piloting the gyre. No wonder Aaarrrgghh hates it so much.
- Exact Words: Gatto says that if the Trollhunters manage to solve his riddle then they can get the Birthstone. He then swallows Toby and Blinky, who find the Birthstone in Gatto's stomach.
- A Glass in the Hand: Strickler breaks his pen, after Jim gives him an "I'm watching you" gesture.
- He Who Fights Monsters: Jim relishes the thought of killing Strickler, to the point where he laments not doing it even though Steve would have been a witness, the masquerade would have been broken, and having murder on his transcript wouldn't do any good.
- If You Ever Do Anything to Hurt Her...: Inverted; Jim holds Strickler at swordpoint in his car after the latter finishes tea with his mother. Strickler reveals that if Jim hurts him, then Barbara will also be hurt, and asks if Jim would sacrifice his mother to kill his principal. Jim can't.
- I Lied: Gatto never intended to give up the Birthstone. He just wanted to eat more humans and trolls.
- It Gets Easier: Jim can handle the thought of murdering Strickler, when before the thought of killing anyone made him hesitant. Toby has to tell him that being caught murdering his principal won't look good on college transcripts.
- Kick the Dog: Strickler bonded Jim's mom with him, then he tells Jim he hurt his mother enough after slicing his finger, and Barbara's by proxy, on Jim's sword.
- Kick the Morality Pet: Strickler hesitates briefly before drugging Barbara's tea with the charm that will bond their lives. Later, he puts on a brave front around Jim.
- Super Cell Reception: The episode title is a reference to the fact that Jim and Toby are able to communicate with their cell phones even though the later is inside Gatto's stomach and both are currently deep underground in Argentina.
- That Came Out Wrong: Jim after Steve makes a series of poo jokes tells the latter to "shut your hole".
- Toilet Humor: The episode starts with the coach sending Steve and Jim to the principal's office for making poo jokes. Then later on Toby and Blinky have to escape a giant troll's stomach.
- Virgin Sacrifice: Toby indirectly references this trope when he assumes Claire would need to be sacrificed to Gatto.
- Wham Shot: Blinky with a human left arm.
- Why Don't You Just Shoot Him?: Jim badly wants to kill Strickler for lying to him, leading him on, taking Blinky hostage, and dating his mother. The problem is that while he wanted to while in Strickler's office, Steve was a witness. Later on when he has a chance, Strickler reveals he's bonded his fate with that of Barbara, and that they both get hurt if Jim injures one of them.
