The group rode on Lion and ended up downtown through a magic portal they were lucky enough to conjure up. "No Amethyst here." Hikaru said as she looked around. "Let's keep looking~lun." Lala said. Soon, they went to Beach City Funland. "Amethyst!" Steven called out. Everyone frowned before going on a roller-coaster to check. "Where could she be?" Elena asked. "Could she be on Homeworld?" Madoka suggested. "I don't think she could get there on her own from Earth." Elena shook her head. Then they checked in Big Donut. "Amethyst!" Steven called out. "We've searched everywhere" said Yuni. "Wait, can I get a couple to go? Steven said, going up to the counter. The group strolled through the neighborhood as Steven held out a donut. "Amethyst! I've got tasty donuts!" Steven called out, holding out a donut. "Come and get 'em! Worth a try. Where can she be?" "Not sure~de purunsu." Prunce shrugged. Suddenly, everyone heard crashing noises. They looked over and saw Vidalia's garage. So they went into the garage which now looked like an art studio which seemed to have several paintings of Amethyst.
"Maybe Amethyst is in here~fuwa" said Fuwa. The group explored a bit. "That one looks like a Picasso." Madoka pointed one painting out. The painting seemed to blink at her. "Whoa!" Madoka gasped slightly as that caught her off-guard. "We found her~fuwa!" Fuwa said. Amethyst was shown, shape-shifting back into her normal form. "Amethyst, thank goodness you're okay." Steven sighed in relief. "Thank goodness you're okay." Amethyst repeated. Steven sighed, but smiled to her still. "I'm very not okay, but I've got a plan." he said. "I'm gonna get us all back piece by piece. I just have to figure out your pieces. These paintings. Do you remember being painted?" "Being painted?" Amethyst blinked, tilting her head. "Do you remember yours and Steven's handshake?" Yuni asked. "Our handshake?" Amethyst asked, morphing into Steven. "Singing and dancing, that's gotta be a piece," Steven suggested, turning on a light. "Do you remember singing and dancing with me?" Amethyst merely looked curious.
"In the light of the day, In the dark of the night, When you're rarin' to go~," Steven began to sing to Amethyst before she changed back to her normal self, dancing a bit before holding his hand out to her. "When you're tired from the fight, When you're losing your mind, Let me give you a thought, I'm gonna be right by your side no matter what!~" Amethyst accepted his hand and the two of them walked out of garage. Steven and Amethyst began to sing together back and forth as the others followed out of the garage as Spinel smiled cutely and innocently from their interactions. "In the dark of the night, (In the dark of the night,) In the light of the day, (In the light of the day,) When you're risin' to shine, (When you're risin' to shine,) When you're hittin' the hay, (When you're hittin' the hay,) I'll be hangin' around, (I'll be hangin' around,) If you like it or not, (If you like it or not,) I'm gonna be right by your side no matter what! (Right by your side no matter what!)~" Then the group went to various places to get Amethyst to regain her memories. First, they went to the Beach Citywalk Fries and ordered fry bits, and Amethyst copied Steven eating. "Amethyst is the only Gem that eats" Hikaru commented. "We already know that" Elena replied. And after eating a french fry, Amethyst liked the taste. They then went to the Funland arcade and played skeeball, but they sat above the machine, throwing the ball into the slot, winning rows of tickets much to Spinel's awe. However, Mr. Smiley caught them and they ran away. "Sorry!" Madoka called out on the way out. "Cheaters never prosper!" Hikaru added. "We regret nothing!" Elena added.
They ran out as Amethyst ran into Ronaldo and formed into him. Ronaldo took out his phone to take a picture, but the others pulled Amethyst away before he could, much to his dismay. Then they rode away in a train together as Amethyst looked happy now. "In the dark of the night, In the light of the day, When you're risin' to shine, When you're hittin' the hay~" Amethyst sang before jumping in the hay. Steven jumped in next. "Just remember this song~" he sang to the Gem. "How's it go, I forgot?" Amethyst asked before they both laughed. "I'm gonna be right by your side no matter what! (Right by your side no matter what!)~" Steven and Amethyst sang together. Hikaru walked up to the Kindergarten in shock as she couldn't believe she was actually seeing this up close. "Glitterific!" she said in awe. "Amazing, isn't it?" Yuni commented as she felt the same way. "It sure is~lun" Lala said as she stood close to Yuni. "Through whoever you've been, (Through whoever you've been,), Through whoever you'll be, (Through whoever you'll be,), Through whatever you'll lose, (Through whatever you'll lose,)~," Steven and Amethyst sang together as they explored the Kindergarten a bit to help her remember before they then rode away on a train after they were done as Cherry took pictures on her phone. "You will always have me, (You will always have me,), At the end of your road, (At the end of your road,), I'll be holding you taut, (I'll be holding you taut,), I'm gonna be right by your side no matter what. (Right by your side no matter what.), Be right by your side, (Be right by your side,), Be right by your side, (Be right by your side,), Be right by your side no matter what. (Be right by your side no matter what.~)"
Eventually, everyone was at a hillside showing the ocean. "Pew." Amethyst said to Steven as she had her right hand as if it was the start of their handshake. "Pew, pew?" Steven replied, doing the same. "One-two-three, hup!" The two did together as Amethyst seemed to remember him now. "Amethyst!" Steven beamed, hugging her instantly. "Whoa" Amethyst blinked before she began to glow and reform. She returned back to her old self before falling. "Ohh, what happened?" she asked. "Amethyst, it worked, you're back!" Steven beamed as he gave her a big hug. The girls and aliens joined in the hug before Spinel joined in and where Amethyst soon noticed Spinel and the others were in the hug. "You!" Amethyst glared as she jumped back. "W-W-What are you doing here?!" "S-So, l-let me explain..." Steven spoke up to Amethyst. "Get away from him, you monster!" Amethyst glared, grabbing Steven and pulling him over using her whip. "Huh?" she then blinked to see that Spinel had disappeared. "A monster?" Spinel asked, suddenly behind them before chuckling as she took a look in confusion. "Where is it? No, I don't see it." "Gah!" Amethyst gasped before jumping back to her. "You're it." "Oh!" Spinel said before jumping over Amethyst and Steven, touching Amethyst's head. "Ready or not! Here I come! Boop!" she giggled as she ran in the distance before seeing them not coming after her. "Oh, I forgot to say, 'you're it'!" She stretched her hand over to touch Amethyst's shoulder. "Okay, tag, you're it!" "She doesn't remember a thing~lun" Lala explained. "And it's because of her Rejuvenator~lun." "Mm, you guys not know how to play tag?" Spinel asked, coming behind Steven and Amethyst.
Then everyone saw something going on where the injector was. When they went that way, they saw a group of people in town all gathered around in amazement of Spinel's machine. "Steven, what is going on here?" A tiny old lady asked the hybrid boy. "I'm not sure, but I'll find out" Steven replied. "Let's open up the shelters, we might need to evacuate." "We better get over to Bismuth, Lapis, and Peridot." Madoka said. "If they haven't been shattered." Hikaru shrugged sheepishly. The group ran up the hill where the plant life was slowly dying and it spread. "Lapis, Bismuth, Peridot!" Steven gasped, a bit out of breath. "What's the damage?" Amethyst asked. "Amethyst, get away from me" Peridot groaned to the Purple Gem. "I can't stand to see you all vacant and bereft of personality." "You want that with dip?" Amethyst asked, unamused. "She got her memories back." Yuni said. "Oh! Well, you're just in time for the end of the world!" Peridot smiled nervously. "This is no ordinary injector. Whatever it's leaking into the ground is toxic." Bismuth came over with a soil sample and Peridot bubbled it.
"Let's get a scan going and see what we're dealing with" Peridot said, placing the sample into a microwave, pressed the popcorn button, then a paper print out. "Just as I thought" she said, holding up a tablet. "Bio-poison. Pure and uncut. As of this moment, the ampule has drained 15.4% of its contents, meaning the poison is releasing at a destruction rate of five cubic meters per hour, giving us... Hmm... 41 hours until the destruction of all organic life on Earth." "All organic life?" Hikaru's face went pale. "Yeah, like all the animals, the plants, the insects." Peridot replied. "You know. People." "So this is what Spinel meant." Madoka said as she and the others now meant what Spinel told Steven. "Oh, no..." Steven added in realization. "'Your human half won't stand a chance against my Injector'" he quoted before panicking for his home of Beach City. "Sh-She brought this thing to kill me, and n-now it's gonna kill everything else on Earth too? I've got to do something!" Then he ran towards the Injector. "No, Steven wait!" Bismuth cried out. "Steven! Stop!" Peridot added. The girls transformed into Pretty Cure to go help Steven get the Injector out of the ground so then its toxic wouldn't spread anymore. Bismuth, Lapis, and Peridot were shocked to see these new forms. "We'll explain later. Right now, we gotta go help Steven" said Cure Star.
Steven grunted a bit as his gem flickered on and off like a faulty light-switch. "Careful, Steven, this stuff could hurt you." Cure Soleil warned the hybrid boy. "You gotta stop Steven or else it'll get worse for the organic life." Lapis told the Cures. "We're gonna help him, but we'll also be careful, right girls?" said Star. "Right" the Cures replied. They removed the Injector with Steven, though some toxic began to leak out. "Did you three try and move the injector out~de purunsu?" Prunce asked Bismuth, Lapis, and Peridot out of curiosity. "You think we didn't try that?" Lapis replied. "Did it make it worse~fuwa?" Fuwa asked out of fear. "It wasn't as easy as we thought it would be, especially with Peridot's metal powers." Lapis replied. "Disturbing the injector accelerates the poison's rate of release" Peridot said, checking her tablet. "Also, it might explode. We have to find a way to move it, without touching it before it's too late." "But Spinel activated it, so she must be able to deactivate it, but she doesn't even remember what it is, let alone how to control it." Cure Cosmo remarked. "Then you gotta change her back." Bismuth replied. "How do we do that~lun? The only way is if we take her to some place that's familiar to her~lun" Cure Milky said. "Besides, won't she kill you guys if she turns back into normal?!" Cure Selene asked. "Steven's going to die anyway if you guys don't help get her to deactivate that thing." Peridot replied. "She's right, Steven" Amethyst agreed. "You got me back. Whatever you did for me, just do it for her." "That's different, I know you" Steven said to her. "I don't know anything about Spinel. None of us had even heard of her before. Except... Pearl," he said in realization. "Pearl knew her." "Getting Pearl back might be a challenge." Selene said. "I guess the Crystal Gems are like your sisters with how well you know them like this." Star commented. The Cures turned back into their normal forms and went with Steven to a storage unit which belonged to Greg as it was now time to talk with Pearl.