Incredible Shrinking Serling

"The Engagement Ring" is the 149th episode of the animated series Teenage Mutant Ninja Turtles (2003), and the fourth episode of TMNT: Back to the Sewer, which originally aired on October 25, 2008.

Major Characters

 * Donatello (Sam Regal)
 * Leonardo (Michael Sinterniklaas)
 * Michelangelo (Wayne Grayson)
 * Raphael (Frank Frankson)
 * Serling (Marc Thompson)

Secondary Characters

 * Splinter (Darren Dunstan)

Main Locations

 * Turtle Lair

Plot Synopsis
Desperate to return to his own time, Serling constructs a makeshift time portal. But it backfires and shrinks him down to size. Even worse, the time portal takes him back to a time when the Turtles were kids.