Lone Rat and Cubs

"Lone Rat and Cubs" is the 10th episode of season 5 and the 114th of the overall. It aired on August 13th 2017.

Official Description
When Splinter first mutates, he must learn to survive the life of a mutant on the run while also protecting four baby mutant turtles.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * Splinter
 * The Kraang

Trivia

 * Tang Shen and Miwa were visions in this episode
 * The title is based on the manga Lone Wolf and Cub. Likewise, the shopping cart, in which Splinter carries the Turtles around for the bulk of the episode, refers to this series.
 * The Kraang quote the Daleks from Doctor Who by saying "Exterminate!" & the Borg from Star Trek by saying "Resistance is futile."
 * This episode is written by Kevin Eastman, the co-creator of the Teenage Mutant Ninja Turtles and the voice of Ice Cream Kitty.
 * The first part of the story shows some similarities to the chapter "Enemies Old, Enemies New" #1 of the IDW Comics.
 * It's revealed that Raphael got that crack in his shell after being run over by a shopping cart as an infant.
 * It's revealed that Splinter and the Turtles first discovered their sewer lair by narrowly escaping a watery grave in the sewers.
 * As children, Splinter gave Leonardo, Raphael and Donatello special reasons why they received their weapons, but for Michelangelo, Splinter claims "they're perfect for [him]."
 * Splinter's line "Within in the tunnels, I could choose the battle ground. Where I could strike hard, and fade away in the shadows", is a reference to Leonardo's line from the TMNT issue #1 "We strike hard, and fade away into the night."
 * During his last fight with the Kraang, Splinter speaks of the Battle of Thermopylae (480 BC), one of the most famous battles of the world in human history.