Ep 21. Darkest Plight

In Teenage Mutant Ninja Turtles (2012) season 4 episode 21 titled "Darkest Plight," the TMNT and their allies are plunged into their most dangerous and horrifying adventure yet. The episode begins with Donatello feeling overwhelmed and discouraged by their latest encounters with their arch-nemesis, the Shredder, and his loyal Foot Clan. The Turtles must once again come up with a plan to stop Shredder from his disastrous plans.

Meanwhile, Shredder is on a mission to obtain the final piece of an ancient artifact known as the Kuro Kabuto, which will grant him unfathomable power and immortality. This last piece is hidden deep within the lair of the demon Karai, who also happens to be Shredder's adopted daughter. As Shredder and his minions launch an attack on Karai's lair, the Turtles and their human allies prepare to defend their city against the incoming onslaught.

As the two factions clash in a brutal and intense battle, the Turtles are pushed to their physical and emotional limits. Leonardo struggles to keep everyone focused during the fight, while Raphael and Michelangelo confront their own deep-seated fears and insecurities. Donatello faces his own personal struggles, and tries to come up with a plan to protect the city and his loved ones from the devastating power of the Kuro Kabuto.

Throughout the episode, the stakes get higher and higher, and the Turtles' chances of victory become bleaker and bleaker. As they face their darkest plight yet, they must find the courage and the strength to keep going, and to never give up on their mission to protect their home and the people they love.

Without giving too much away, "Darkest Plight" is an action-packed, emotionally charged, and deeply satisfying episode that will keep viewers on the edge of their seats from start to finish. With its compelling storyline, rich character development, and breathtaking action scenes, it's a must-watch for any fan of the TMNT franchise.