The rangers are at a dig, trying to search through the fossils to uncover more Energems. All except for Shelby... She has realized that the Energems were found in specific dinosaur fossils, and that they won't find additional ones by looking through the same fossils as the other Energem locations. Instead, she theorises that the Energems of the Plesiosaur, Ankylosaurus, Pteranodon, Brachiosaurus and Pachycephalosaurus would be located in those specific fossils, and by using the Energems they already possess, they could potentially find the exact points to dig using them. The others don't believe that there is a way to do this, but Shelby does - Kendall.
She goes to Kendall, who is at first dismissive of her idea, until she hears her out. The theory is sound, and by using all five Dino Chargers, they can create new Chargers which can then hone in on the signature of the Energem. They build a device capable of detecting an Energem signature, specifically the Aqua Energem, using the new Ankylo Charger. As the guys return, the pair demonstrate the device, which picks up a signature on the west coast of America.
Unbenownst to the rangers, Poisandra has been plotting to find an Energem herself, and has one of the inmates recruited by Curio to retrieve it. The monster, Stingrage, has the ability to sting sentient beings, putting them into a berzerk rage. The three manage to get to the site first, with Stingrage stinging the Ankylo Zord. The rangers arrive and fight the group, but Stingrage proves too powerful, even stinging Koda in the back. While Koda attacks the other rangers, Poisandra and co slip away.
Back at HQ, Kendall laments that despite it being a joint venture between her and Shelby, the Ankylo Zord was found by Poisandra because she didn't think to encrypt the transmission, so anyone could have hacked in. She tries to go out on her own to help the new zord, but Shelby sneaks along to aid her. As they get to the location, Stingrage attacks again. Having been told by Sledge that despite hurting the zord and almost capturing Koda, almost won't cut it; he needs to bring back an Energem, or he will wish he was still imprisoned.
Shelby gets knocked into the Ankylo Zord's cavern and morphs, leaving Kendall on her own against the Vivix and Stingrage. Armed only with a shovel, she proves to be much tougher to take down than she appears, but is nowhere near a match for them. Blasted over, and losing her defense, she is at their mercy when Tyler and the others swoop in and defend her. As Kendall heads back to HQ, the rangers fight back, with Shelby calming the Ankylo Zord in the process. Using her Dino Steel, Shelby deals the final blow to Stingrage, destroying him, but Sledge makes him grow using the Magnabeam.
The rangers call out their zords, using the Ankylo Zord to form the TriAnkylo Megazord. It is able to deflect his energy blasts and attacks, and defeats him with a spinning hammer shot.
Back at the Dino-Byte cafe, Shelby is given a gift by Kendall - a triceratops fossil. However, the fossil turns out to be triceratops dung. Shelby is understandably grossed out...
Tropes used in this episode:
- Accidental Misnaming: Its Shelby - the resident dinosaur expert in the team - who misnames two of the remaining guardian species, naming Pachycephalosaurus the Pachasaurus, and Brachiosaurus the Titanosaurus.
- All Your Powers Combined: How the Ankylo Charger is created.
- Calling the Old Man Out: A mentor variation. Shelby returns to the base, to explain her idea, Kendall trying to act superior and ignore: Shelby throws it all right back in Kendall’s face. However, to Kendall’s credit, she gives Shelby a chance to properly explain and realizes that, of course, Shelby knows what she’s talking about.
- Foreshadowing: Kendall's fighting prowess is just a little bit below the rangers', thus tipping off to the fans that with the inevitable additions to the ranks, young Kendall might just get to settle into the spandex.
- Psycho Serum: Stingrage's stingers turn anyone hit by these into a blind rage until they're pulled out. Koda and the Ankylozord are hit with these.
- Ship Tease: A subtle one. Tyler was really worried when he found out Shelby fell into a hole with a brainwashed Zord inside.
- Shown Their Work: Coprolites
, fossilized animal droppings, are a real thing of real interest to archaeologists, because they can give evidence of what a prehistoric animal's diet was like. - Toilet Humor: When Shelby was expecting a Triceratops fossil in the present...
