Guess Who's Back in Town? (よみがえる、カイ, Kai, Reborn) is the fifth episode of Beyblade: V-Force.
Tyson and Kenny are safe on dry land once again but are totally baffled trying to figure out why Kenny and Hilary were kidnapped by the two mystery men. The best that they can deduce is that two fractions are out to steal the Bit Beasts of all the members of the Bladebreakers. This leads them to wonder about Kai who supposedly has retired from Beyblade.
Back at Kai's prep school, a curious student named Wyatt is all over Kai trying to get him to come out of retirement and give him a few pointers on how to blade. Kai ignores him until a bully named Dunga entices Wyatt into a battle. Wyatt is sure he can win, especially since he's using Kai's Dranzer which he stole from Kai's hideaway. In no time, Dunga wins, but Kai decides to fight the rematch. The fight is fierce and surprisingly ends in a draw. But after the battle, Kai decides to come out of his retirement because he believes he has at last found a worthy opponent.
- Kenny and Tyson discover why Dragoon didn't come out during his battle with Ozuma.
- Kai decides to attend Whittney Prep School.
- Kai has quit Beyblading, due to lack of competition.
- Wyatt is interested in Kai for winning the World Championships and wants to learn some of Kai's techniques.
- Dunga, the last of the Saint Shields, appears and battles Kai.
- Kai decides to take Dranzer out of retirement and back into blading, because of a worthy opponent.
- Tyson Granger
- Hilary Tachibana
- Kai Hiwatari
- Wyatt Smithwright (debut)
- Dunga (debut)
- Prep School Bladers
- Kenny's Parents
- Ozuma (video footage and flashback)
- Ray Kon (picture)
- Max Tate (picture)
- Ryu Granger (mentioned)
- Dragoon V (Tyson's)
- Flash Leopard (Ozuma's)
- Dranzer F (Kai's)
- Master Draciel (Kai's)
- Master Dragoon (Kai's)
- Master Dranzer (Kai's)
- Vortex Ape (Dunga's)
- Wyatt Smithwright (Generic Plastic Bey) vs. Multiple Prep School Bladers (Generic Plastic Beys) = Wyatt & Generic Beyblade
- Wyatt Smithwright (Dranzer F) vs. Dunga (Vortex Ape) = Dunga & Vortex Ape
- Kai Hiwatari (Dranzer F) vs. Dunga (Vortex Ape) = Draw