The Fifth Titan! The Beast Boy once more tries to convince the Doom Patrol that he is worthy of their membership by using his shape-changing powers to try and trip them up. All he succeeds in doing is annoying the Patrol members, who once more reject his request for membership with the group. Since the Doom Patrol has once more left him, Beast Boy decides instead to try and get a membership with the Teen Titans, sending out a message to the group to meet with him.
Revealing his identity as Gar Logan, Beast Boy explains to them that the Doom Patrol has refused him membership because he cannot get his guardian's consent to join the group and hopes the Titans will take him. Robin regretfully informs him that the Teen Titans also operate similarly and that he still needs parental permission to get into the group. Once more rejected, Gar calls himself a freak and angrily flees the scene. Later he comes across a truck owned by animal trainer Baltzer the Beast Master, who's hit bad times and cannot afford to buy decent animals. Hoping to use his powers, Beast Boy reveals himself to Baltzer, who agrees to make him part of his show.
As expected, with Beast Boy, a circus member, Baltzer's act becomes a hit, and Beast Boy gains the recognition he craves. However, things are not all well at the circus as Baltzer is less than on the level and has his mystic Vorna hypnotize Beast Boy into becoming a rare Albino Baboon with mesmerism powers that can put the entire audience into their thrall and allows the circus to steal all their possessions. They then send out the crowd to loot the nearby town for them before restoring Gar to normal, Gar has no memory of the incident, and Baltzer exploits the boy's feelings of acceptance.
Meanwhile, the Teen Titans are called in to deal with the hypnotized masses and learn they are under a hypnotic spell. Snapping the crowd out of it, they note that the circus troupe with which Beast Boy has joined is in town and find it a little convenient. Disguising themselves as acrobats known as the Masked Mazeppas and get hired by Baltzer, who is none-the-wiser that they are the Teen Titans in disguise. When Baltzer and Vorna try the same attempt, the Titans hide in a safe an escape artist uses to be immune to its effects. However, Baltzer, having grown suspicious of the Titans, hears them, traps them in the safe, and commands Beast Boy to toss the safe into a pool of water.
However, the Titans get free when Kid Flash vibrates through the safe wall with Aqualad, who breaks open the safe so that Wonder Girl and Robin can escape. Baltzer and Vorna send the hypnotized Beast Boy against the Teen Titans. Baltzer inadvertently brings about his defeat when he tries to enter the fight. Launching himself out of a cannon and spinning torches in his hands, the spinning flames snap Gar out of his hypnosis, and he easily captures Baltzer and Vorna, who fail to command the audience to forget what happened. They are turned over to the police.
Afterward, the Titans realized Gar was exploited because nobody accepted him and debated whether they should waive the parental consent clause in their membership. However, instead of making a decision, the Teen Titans appeal to the readers and ask them to write and decide for them.