Time Sprinters : Trouble in Time

"So you're a time traveler?" Wren asked.

"Yes." Leo said, as-a-matter-of-factly.

"So do you just travel through time?"

Leo opened his mouth to say something but was interrupted by
Amelia pulling Wren by his arm and dragging him away from Leo.

"Are you sure we can trust him?" She asked, worried. "We just met him and we're not really sure if he's telling the truth."

"Of course we can. And he's our only ticket back to our time. Besides, what's the worst thing that could happen?" Wren said.

Amelia rolled her eyes, unamused.

"I could make a list of things that would eventually happen."

It was Wren's turn to roll his eyes at Amelia. He craned his neck to look behind him at Leo. He had a confused look on his face. He turned back to Amelia.

"You trust me, don't you?" He asked.

Wren smiled with pleading eyes. She looked at him hesitantly, unsure of what to do at the moment.

"Don't give me that look." She said, frustratedly.

Silence.

"Fine."

"Great!" Wren grinned.

"This is going to be fun."

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Wren and his sister, Amelia, stumbled upon an old, antique pocket watch which turned out to be a time travelling device. As they wrecklessly travel through time, they met a strange, peculiar boy who goes by the name, Galileo. Together, they travel to every existed time possible - from the Middle Ages to the Renaissance and Stone Ages - to find a way back to the present and at the same time, fixing the very fabric of time and space.