Help my Daddy!

Help my Daddy! is the twelfth Trouble Center mission in Paper Mario: The Thousand-Year Door, initiated by Pine T. Jr.. It is first available after clearing Chapter 2.

Mission
Mario must venture into Rogueport Sewers and head to the entrance to the Pit of 100 Trials to find Pine T. Jr., who explains that his father, Pine T. Sr., had gone into the pit but never returned, so Pine T. Jr. asks Mario to bring his father back. After reaching Level 18 of the pit, Mario finds Pine T. Sr. knocked out, and talking to him wakes him up. Pine T. Sr. asks Mario to show him the way out, and Mario must make his way down to Level 20, where the nearest exit pipe is. Upon reaching that level, Pine T. Sr. takes the pipe, and Mario too must take the pipe that warps him back to the entrance, where he finds the father reunited with his son. By talking to them, Pine T. Jr. rewards Mario with a Silver Card before leaving with his father, and the trouble is solved.

In-game description

 * "Oh, my dad is is in a world of hurt down there! Please, you gotta help him! I'm waiting at the entrance to the Pit of 100 Trials beneath Rogueport!"